All I can tell you is that you are setting yourself up for failure. Abstinance is about the stupidest thing on earth. Keep in mind this is coming from a guy who was:
1. Raised in a Christian church
2. Waited to have sex till I knew I was going to marry the girl
3. Got married at 20
4. Quickly went from a "social drinker" to an 12 pack A DAY alcoholic
5. Recently lost an entire fuck month of his life to pot, booze and prescription drugs
6. Almost 100% sure I am going to leave my wife pretty much solely over sex
Sexual compatibility is a HUGE deal and without it you will end up either leaving her or being miserable. It took me close to 2 and a half years to realize that my wife is not going to wake up a nympho. The shitty thing is that she was like this while we were dating but I just figured it would be different if we were married.
I know that you are going to read this and think about how different you are and how it will never happen to you. I did this same fucking thing when all the older men I knew told me that I was batshit insane getting married so young. I just said "oh no, it is different with my wife", they just laughed.
I do believe in marriage and I think raising kids in an unmarried home is a bad idea. That being said you are fucking crazy if you don't live with, and have a healthy sexual relationship with any woman you might consider marrying.
Another thing to ponder is that you have 2 pools of women to choose from. The first would be "normal girls" who I would venture to guess are mostly not virgins and would laugh at you if you said you were one. On the other hand you have church girls, those who are sexually active are in the minority but the second you mention herb they are out because it is illegal.
Watch the last part of this video, I fucking LIVE this every fuck day of my life.
http://www.youtube.com/watch?v=qmSbF46yJ64