Not able to finish?

Julianna

So my boyfriend and I recently became sexually active, and before that I’ve always been able to finish from him going down on me. At first sex hurt, but now it’s starting to feel good and when he fingers me it feels even better, but no matter what I haven’t been able to finish. When doing things myself, I’ve only been able to finish twice and I have absolutely no idea what I did differently. Once I used fingers and the other time a brush handle. I just don’t know how much more into it I can be without finishing, it doesn’t make any sense to me. Help please!!