Hello, I have a huge ass insecurity for my dick size and it’s performance.

I think my dick size is in the high 5 inches close to 6 inches but I haven’t measured it in a while and I’m scared to. It seems small to me but anytime I use it in someone they tell me that it’s big. I’ve always wanted to be rough with someone and go long but every time I start to go roughly I cum immediately and it’s so annoying! I think my longest time was like 3 minutes maybe I’m not sure. (Since I obviously don’t time when I have sex 😂) I just don’t know what to do about it other than do it more but even when I do it feels like it doesn’t work.

Could I have some advice or just anything about this?