1). You're 23, so calm down. I only liked oral from 17 years old until I was 24. I had tried anal a few times before 24 but didn't care for it. Then I started to slowly like it.
2). Not coincidentally, this is the time when I started to feel COMFORTABLE with myself. I now realize that my hangup on anal was just my expression of my internalized homophobia. Anal, either topping or bottoming, feels absolutely amazing physically (when done properly), so it can't be a physical reason you dislike it. You probably dislike it because you perceive it as "nasty," "dirty," "immoral," "too gay," etc. It's basic psych 101. Give it time, you'll get over your hangup with anal. I can't think of a healthy psychological condition where a person would not at least enjoy anal sex. Same is true for heterosexuals who don't enjoy anal, it's internalized phobic expressing itself in a disdain and rejection of anal.
3). Having said that I think you'll learn to enjoy anal, doesn't mean that you'll necessarily continue to do it. For whatever reason, perhaps liking oral more, you might not continue anal. But preferring oral over anal is entirely different from "hating" anal and doing oral as a backup.
In short, relax, you'll come around.