Okay, firstly didn't like your last sentence. Makes me feel like you do feel you're entitled, well this whole post sort of does.
The best way for you fix these feelings is to get out of this mindset, it is just a mindset. How would sleeping with an escort to lose your virginity help you feel better about yourself? let's be honest, it probably won't. It's not even about sex from what I'm gathering, you feel insecure and less worthy than your friends because you're basing your worth on the opposite sex. Do you really want that sentence<---- to define you? no of course not. So you must change it. Be successful in your degree, form some good friendships, have fun by yourself and learn to accept yourself, work on self-improvement and along the way maybe you will meet some people who take a great interest in you. Who cares if your not the adonis of your friendship group,? I'm sure you don't look like a troll either.
You can be a million other things that would attract a female, one would be not to think this way, I don't find this type of thought process very attractive in a guy, what if you're actually giving the impression to girls you feel this way, then sleeping with you would feel like they are doing you a favour (It probably isn't like that but I'm just giving you an example). So that's why you must get out of this mind set!
As for sleeping with an escort, Can I just I have no problem with sex workers, there is nothing wrong with it, if a woman wants to do it and a man wants to buy it (or vice versa) then whatever, it's up to them. But there is a stigma attached to the whole thing that I have never been able to separate myself from(I don't think many people have either) and if I find out that a future boyfriend of mine lost his virginity to an escort, honestly would make me fee a bit uneasy.Probably would change my impression of him immediately. That is judgemental and I'm sorry but it's my honest opinion and I'm not going to go under anon to say it.
I don't think you need to, it's not about sex or virginity it's about you and the way you are feeling and you must change that!
(This is probably the longest answer I have written since I joined TSR, but I felt it was necessary).