I don't feel good enough for my boyfriend

So me and my boyfriend were doing 69, and he was taking forever so I got kinda upset and just tried to make him *** faster but it didn't work and then I started thinking in my head "I can't even make my own boyfriend ***, what's wrong with me?" And I started crying and of course my boyfriend didn't think anything of it and I just felt so so bad because I didn't finish what I started and just feel like I'm completely not good enough for my boyfriend. This isn't the first time I've cried over this reason either. 
I just need advice??? :(