Help please😶

So I'm 16 and I've never had a boyfriend, i talk to boys but nothing ever seems to happen, I'm not sure if it's because in my height (I'm nearly 6ft and do Taekwondo). But most of my friends have got boyfriends I just don't know if it's me? Also I've never kissed a boy (or had sex). I just don't know if it's me, with new people I can be really nervous and shy... ughhhhhh it's so annoying, what should I do😕