Said a Hail Mary.
But please realize that this:
And I don't like to deceive myself by being "devoted" outwardly while inwardly I'm not denying myself completely. Its all or nothing.
is a dastardly trap of Satan.
Do what you need to do, even if only outwardly, and your interior disposition will change over time. Ask God to take the imperfect works and move your soul. This is crucial to spiritual growth.
If you continue in the "all or nothing" mindset (which btw is rooted in pride) you WILL end at nothing.
Please reconsider and take a "baby steps" approach. This is how God works most of the time. On rare occasions He will work miracles of grace but for most of us, it's all about baby steps.
I dare say even this insatiable need to give all to God in the context of "all or nothing" may not be of God. God does not torture us. He knows that we are stupid, that we need time and grace, that slow and steady wins the race and that's how He works with us. God also satiates us. If this insatiable "thing" is driving you nuts and keeping you in a state of confusion, let it go.
Sometimes Satan sees a magnanimous soul, which you seem to have, and takes full advantage by making it think and feel like the little things will never be enough. It ties into this all or nothing mentality and brings a sense of depression or helplessness with it. But very few people, if anyone, maybe St Paul, work that way. Most of us need to put on a little humility and realize that sanctity is a slow, painstaking process that is never fully "all" or complete until we reach the Beatific Vision.
When the saints long for God or to give Him their all, they still have an underlying peace about it. If it is accompanied by distress, it is a smoke and mirrors trick designed to keep you paralyzed, thinking you can't do enough so why bother doing anything at all. I say grab the Holy Water every time you feel that pressure build. Then give yourself a quick pep talk about the differences pointed out here and ask God to help you get through this stage.
I say this as someone who was tortured in the discernment of my vocation, thinking I
had to go to the convent or else. It wasn't until I got through a few years in that stage that I could look back and realize that all that agony and confusion was NOT of God even though it said all the "right" things. Not saying you do or don't have a vocation but I doubt you can discern properly in the state of mind you're in. You have to start small and find a basic level of peace
before entering anywhere.