C'mon Lad, don't tell the guy (or girl) to get on meds. Meds to most people are pharmajewticals and people don't need to be on that trash.
OP, for someone that has had anxiety, one thing that really helped me was St. John's Wort. I take about a 900 mg per day and no longer have anxiety issues and it helps calm my often racing mind. It should not be taken with "meds" though and please do proper research on it before trying it to see if it's right for you and how much to take. Passion Flower is another anti-anxiety plant that works a little differently that also may be of benefit to you.
I also used to be scrupulous and what helped me get away from that was reading good Catholic Books and praying to be released from it after recognizing (being shown) that's what was going on with me. Don't focus too much on... (nervous mind) "...a...aa.....am I Catholic?," "...a....aaa....am I in a State of Grace..I HAVE to know...," etc. I've seen a couple people fall into this and end up saying and believing things like we haven't had a true pope in 1000 years.
Focus on prayer, penance, fasting, almsgiving and living like a Catholic should and let God do what He Will's with you.