“Is it cool to wait? Should I feel bad because I don’t want to have sex yet?”
To answer your question, no, there is reason to you should feel bad about not wanting to have sex yet.
I know that in our sexual social climate, sometimes it can seem like being a virgin or being abstinent is somehow a burden. But, the reality is that you have every right to choose every aspect of your sexuality. It’s your body, do with it what you want.
That being said, I would encourage you examine the reasons behind your desire to not have sex. Are you scared because you’re uninformed? Are you following the guidelines of your religion? Are you simply practicing the safest form of sex possible? Have you simply not met the guy, gal, or inbetweener that is worthy of sharing your genitals with?
Whatever the case, be sure that you’re doing it for a positive and healthy reason. Often we choose to close off ourselves off because we’re fearful and we like hide that fear behind religion or ideas of propriety. But, in reality we’re just running away.
I would like you to make sure that you are still exploring your sexuality, even though you’re not having sex. If you wait too long to even acknowledge the sexual being within you, you could miss out on a lot positive formative experiences.
Masturbation is healthy, beneficial, and fun. You could also try watching porn, or reading erotica and sexual fantasy to help keep your sexuality buzzing along happily. This will put you in a better position to explore the physical side of your sexuality if you ever get to that point.