Being on top, but I feel like a flop 😔

I was just wondering if there is any tips,  Positions or anything I can try to make me taking charge/ going on top more comfortable? I've been with my boyfriend almost 7 years & when I go on top, it either hurts, feels uncomfortable & on odd occasion feels alright. Am I doing it wrong? I have tried almost anything I can think of & I just don't feel sexy when I'm on top & it's meant to be empowering! 😔 my boyfriend is very sweet & patient & I do go on top or take control of the tempo in other positions can anyone help? Thank you! Xx