Sometimes i get thoughts that my gf will leave all due to my penis size. I am only 4.5 inches long and have 5 inch girth.

Idk why but i get thoughts of insecurity due to my small dick. I fuck her good and i can tell but i still feel a male with a bigger dick will fuck her better.

I hate these thoughts and i wish i just wouldnt give a fuck about my Dick size. She is the only person i fucked so far and she likes ny dick but i wish i were longer and thicker.

I feel men with bigger dicks would be manlier than me. I feel like a beta when i have these thoughts of her leaving due to my small dick. I wish i just didnt give a fuck.

Any advice?

Thank u all who helped. You guys are helping me alot and made me realize shit that i didnt think before.