Sick of being single

Jennifer
I'm 15 almost 16 and I've been in one serious relationship and I haven't been in one for a very long time. I get asked out quite a bit but I'm so scared to get into a relationship that I'm not going to be happy with. At the same time I realize that if I never get into a relationship then I'm never going to know what I do and do not want in a relationship any advice?