How does being molested at a young age affect you when your older?

I was molested at the age of either 4-5-6 I can't really remember by an older family member. He let me hold his and sort of, like, pull it back It's hard to explain I really can't explain it and we french kissed I think I remember and also once I pulled my top up in front of him after leading him into the dining room and closing the blinds and he showed me his and I looked away quickly and it ended after that. Not much, just three occasions but It's really affected me. I keep crying, I'm actually trying not to cry now because my mum's in the room and I don't want to tell her my feelings. She knows what happened I just have no strength to cry and tell her my feelings. I'm 14 and I'd love to have a boyfriend and I've been talking to one of my friends crushes online and me and him have a joke and stuff and then he sent me voice messages as a joke and they were funny but, all of a sudden I didn't want to talk to him. Like he'd crossed a boundary. I don't like my "friend" much because she has lied so much to me I just can't stand looking at her. But as soon as I talk to him and he makes a joke I just joke around but as soon as he sent me those voice messages I became a bit wary of him. I've never met him but my friend meets him at church and he goes to my other friend's friends school. I don't fancy him in any way but he just completely freaked me out with it. Is there a reason to this? I know I'm overreacting but I'm just wondering are there other things that can affect victims of molestation?