Saving sex for marriage; is it bad?

I want to have sex with my partner after marriage, since I don't trust people too much. I'm afraid that the first person I sleep with, especially a guy, will go around and tell everyone and I'll be marked down as a whore and slut. I've come to terms that I'll just wait for marriage to have sex.

But I'm concerned that my next partner will break up with me or cheat on me for the sole purpose I don't have sex. I don't consider myself to be asexual, and actually have a very high sex drive.

It makes me worried and if I do manage to get married, I'm afraid my partner will either be bad in bed, or have none of the kinks I have.

I don't plan on doing anything sexual either, like blowjobs, handjobs, fingering, sexting, or phone sex or anything else. I just want to save it for someone who I'll marry. Is it a bad thing to wait until marriage, and should I be worried?