I have a small dick. Like, really small. For years I pretended it wasn't an issue and thought of myself as a top. I was denying that what I was actually attracted to was a man with a bigger penis than mine. As a consequence, my sex life was frustrating, even if I was sleeping with a fair share of men.
This continued until one night when I picked up a hot guy at a bar and took him home. He wanted to blow me while I was standing. I dropped my pants and he kneeled down and got to work on me. A few minutes in and he suddenly got up and said he had to go. He didn't say why, but I knew he was disappointed in what I had to offer, and he wanted to head back to the bars and continue his search before it got too late.
After this experience, I gave up on thinking of myself as a top man and started the process of acknowledging that what I really was was a small dicked bottom.