I just scanned thru the posts quickly, but Sign, when I read your stuff, I coulda sworn I was reading things written by me at your age--it was almost scary.
I'm Catholic as well, had zero success with the ladies, was horribly flat broke and in debt while in college and long afterwards, and just had plain bad luck. Here I was, a college graduate, making $10,000 a year, working at WalMart in the evenings, using food stamps, and my hair was falling out from having to pay my bills with credit cards. I put a lot of pressure on myself and often wondered what was wrong with me. I thought God wanted me to be a monk, cause I felt so lonely. I thought if I could find a special someone things would change. But unlike you, I never dated a girl longer than a month until I was 26--not even in high school or college.
I had one guy who was my "spiritual adviser." He was just a Christian, one of the nicest, most up-beat guys I ever met. I never saw him upset, depressed, angry, negative, bitter--he was unbelievable. I would call him at 2 or 3 in the morning with my sob stories (he worked 2 jobs, one during graveyard shift). He always made me feel better. After being spiritual my whole life, I had pretty much given up on God and blamed him. At one point, when I was about 27 (I'm 36 now), I made a horrible decision regarding a female that I thought was the one. I went into a major year long bout of depression. I tried to get thru it on my own using self-help books. Finally, I said F it, I'm just gonna go out and enjoy life and quit worrying about things so much. Once I made that decision, a huge burden was lifted off me and things started to turn around. When negative things happened, I just took it all in stride. Now, I did some regrettable things--promiscuous--but things kept improving. Things weren't always rosy, but I was really enjoying life, I was climbing the empoyment ladder, meeting women, then boom, I met my future wife. And then it all went downhill from there. Just kidding
My only regret bout marriage is that I was finally at a point where I felt free and liberated for the first time--marriage took that away a bit.
I still have lot of unhappy times--I really hate my current job for example--but I rarely get stressed or worried, because I know it will all work ou somehow. I have slowly found my spiritual faith, but never to the point like when I was younger. I have totally questioned the catholic church and a lot of things about organized religion, so I just stick with "faith." My best advice, find someone who you can talk to like my friend. Or maybe you have found that here. Just remember, no matter how bad you think things are, there's always people who have it even worse. Be grateful for the good things in your life--your health, friends, family, roof over your head, the ability to wake up without war, poverty, disease, etc.........good luck.