Welcome to the forum, Bubbline. You're in a safe place here. I understand only too well what you've gone through - I was sexually molested when I was 3-and-a-half years-old by a babysitter's son and a bunch of his friends. Have experienced other incidences of sexual assault and rape as well. I know how damaging it is and how much it destroys your sense of self. Sexual assault, sexual molestation and rape horrible, revolting crimes against humanity. And when you're a child, you don't even have the resources to understand it or to verbalise it - it's extremely disempowering and shatters the self-esteem on profoundly damaging levels.
It's great that you've found this place. Keep talking about it, keep engaging here on the site, and it will get easier to process and deal with. This is a very validating site; people here are very reassuring and validating and helpful. Good work on posting your introduction (which wasn't long at all, btw!). I suggest starting a trauma diary; you can write about whatever is on your mind - it's your diary and your diary only, and people will read and offer supportive comments and suggestions.
*offers gentle and caring hugs* Look after yourself, Bubbline. <3