Consult a good Traditional Priest. As a Lay Person, I say morning offering with 3 Hail Mary devotion. Wear Brown Scapular. Pray 5 decade Rosary daily. 10 to 15 min Meditation on the 7 Sorrows Mary devotion daily and 3 Hail Mary devotion before bed.

This gets in all of the requirements without interfering with my daily duties which is just as important in the eyes of God.   

Everyone is different and needs to do what they feel like God is asking them and follow advice of a true Priest who is a good confessor.

It is normal for prayer to feel difficult and arid a you progress in the spiritual life.

If you have the time, read the book "The Three Ages of the Interior Life" by Fr. Réginald Garrigou-Lagrange. It is all thoroughly explained there.

You can find the book in its entirety here:
https://www.christianperfection.info/

You probably are seeing this situation as a bad thing, but I believe that it can actually be a sign that you are progressing. God is testing you to see if you really love Him for what He is, and not for the solace that you find in spiritual things.

Don't be disheartened.

So should I continue saying the divine office? If I were to ever get married I don't know how I would have time for this.

I presume that you know that you are not obliged to say the Divine Office, right?

Obviously, I am no one to tell you how much or what to pray. I am only offering a contribution that I believe that will help you.

If you have the time, I think that it is a good thing to pray the Breviary, but there might be other spiritual exercises that could be a better use of your time. I have the impression that the Breviary has become a source of anxiety to you. You could try to omit the shortest hours and do some meditation or some other exercise to see how it goes. 

When you get married, you will have to reorganize your priorities. It is no good praying all the  hours of the Breviary if it prevents you from giving the necessary attention to your family.

It would be very good if you could find a really holy Traditionalist priest to guide you, but I know how hard it is to find any Traditionalist priest these days, let alone a holy one.

(...) If I were to ever get married I don't know how I would have time for this.

If your state in life changes, naturally, your love and service to God is expressed in other ways besides prayer. Here is a quote from St. Vincent de Paul (his charism compelled him to help the poor):

If a needy person requires medicine or other help during prayer time, do whatever has to be done with peace of mind. Offer the deed to God as your prayer. Do not become upset or feel guilty because you interrupted your prayer to serve the poor. God is not neglected if you leave him for such service. One of God’s works is merely interrupted so that another can be carried out. So when you leave prayer to serve some poor person, remember that this very service is performed for God. Charity is certainly greater than any rule.

You probably are seeing this situation as a bad thing, but I believe that it can actually be a sign that you are progressing. God is testing you to see if you really love Him for what He is, and not for the solace that you find in spiritual things.

Don't be disheartened.

This.

Better to persevere in stability rather than change things up, and to only change things up when really necessary. If you can, continue with what you are doing, only try to be more fervent. Just try it for another couple months and see if you still need change.

Your problem is you have become both stagnant and overwhelmed at the same time....stagnant in the repetition of the same prayers day after day and overwhelmed by trying to do it all while knowing there is much you're not doing.
Holy mother church is designed to keep things simple and fresh and the faithful followed her lead for centuries up to Vat II.  Since then people have forgotten how to pray with the Church.
 
The Church's  Liturgical year,
 Advent,
Lent,
Easter
 Pentecost
 and time after Pentecost.
 
The Church's monthly dedications, 
1, Holy Infancy 
2 Holy Trinity/Holy Family 
3  St Joseph
 4 Holy Ghost/ Lent
5 Blessed Virgin
6 Sacred Heart
7 Precious Blood
8 Most Pure Heart of Mary
9 Holy Cross
10  Holy Angels
11 Poor Souls in Purgatory
12 Immaculate Conception/Advent
 
The Church's daily dedications.
The Holy Trinity
The Holy Ghost/ Poor Souls in Purgatory
St Michael and the Holy Angels
St. Joseph
Blessed Sacrament
The Passion/ Sorrowful Mother
The Blessed Virgin Mary
 
It is so easy to follow the church's plan as above that you will find you are praying less but with more fervour and devotion and you'll never become stagnant, as everyday is different and every month and season is different. Within this framework you choose which of the multitude of prayers/devotions you feel attached to...some a litany, some a chaplet, some a favourite prayer or even a sacrifice in their honour, all the while keeping that specific dedication in mind throughout the day.  By the end of the month you're on to a different set of devotions, no chance for your mind to wonder.  There is a time and place for everything...you don't have to do everything all the time.
 
Of course you make your morning offering, intention to gain all indulgences throughout the day and any special intention you have and your night prayers, which leaves you time for your rosary according to the Liturgical season and any special intention that arises unexpectedly.
 
It will take you months to get this set into your routine but I guarantee you'll never become stagnant or overwhelmed again and your devotion and reverence will increase by leaps and bounds.
By the time you get married and have a family it will be second nature and you'll teach your children how to pray and not just say prayers.
 
The biggest help I can offer is... get yourself a Father Lasance "My Prayer Book"  and in the mean time here is a link to his book starting with the above mentioned dedications.
 
https://archive.org/details/MyPrayerBookHappinessInGoodness/page/161/mode/2up