I have also never had a bf, I'm 21 and think right now I need to focus more on myself, of course there are times when I really want a bf but I need to be happy in myself before I bring someone else into the equation. If I'm not happy single then I wont b happy when I enter a relationship either, its as simple as that, I do feel for you though when you are the only single ones out of all of your friends, which has happened to me multiple times, I see girls who are engaged and in relationships and I do get jealous but I think thats normal, even tho I dont want to b jealous and Im trying hard not to be.
My best friend has never been single for long and always has a bf, she has been through so many heartbreaks and pain it just makes me sad for her when it happens, I kind of feel like saying just be single for a few moments, she is engaged now to a guy i dont know so well and she is worrying about things that I dont have to worry about, like finding a house, joint bank accounts etc. I just want to say that having a bf can be a struggle especially if they are not you destined future husband. Being alone is not that much of a burden at all compared to the many difficulties young people in relationships deal with, and there is a great difference to being alone and being lonely, you can still live a great life with a career, family/friends and hobbies. Right now Im trying to find my own happiness by myself before I expereince it with guy.