Welcome here to the Forum where hopefully you may get an account of life that is not all movies and adverts.
Having sexual relations is for a great many people, myself included, a pretty heavy thing. It is a risk, an investment of one's emotions, opens up vulnerabilities and can be a real worry - what if I get it wrong or am not sexy or I'm only wanted for sex or ... you get the idea.
True some of your friends might be different, then again they may be responding to the dream world purveyed in popular media.
Your post is full of "what if's". You are, if you don't mind me saying so, borrowing trouble before it happens. You may have a couple of false starts, then again you might find someone who clicks quite soon.
The bottom line is you are someone to be valued for yourself, and while sex is part of that there is an awful lot more. Strength, wisdom, trustworthiness, fun, plus lots of other things.