HELP ME PLEASE!!!!!!!!

Okay I feel like sooo stupid for asking, but I im going to get my first kiss vey soon ( yes I know for a fact) and it almost happened today, but I 'ran away' and i feel soooo stupid!!! I'm soo nervous, and my boyfriend is to ( it's he's first to I belelive). But I'm really scared, I mean I really want to kiss him but I'm soo nervous!!!!! And I can't help but being scared!!!! Cause I don't know like anything!!! Solo if you could please help me, that would make me SOOOO happy!!!! ( the longer answer the better)