Actually, it's perfect. While I'm a follower of the 1/2 + 7 Law, which says that the maximum age discrepancy between you and your partner should be [your age]/2 + 7. You say you are 22. 22/2 = 11. 11+7 = 18. BADDA-BING!
I myself am 22, and am currently in the midst of seducing a girl who is 18. As in, just turned 18. (rubs hands) You're in good company, lad.