I am in my twenties and I have been dating the same girl for 3 and a half years. I am what could be considered small 13.1 cm (5.13 inch) while I am quite big in the rest of my body (my height is 1.91m or 6.27 ft) and I am not skinny. Besides that I can't last very long most of the times (30 secs or less).

Sometimes I last too long that I don't even finish my part because she is already too tired and climaxed multiple times... but these situations are now 1 is a dozen or even rarer while in the beginning it was a lot more frequent.

I do a lot of foreplay but she gets impatient sometimes and wants to have a lot of penetration, which doesn't really work well for me.

I have been getting worse with my insecurities and it leads to worse performance and its been a slippery slope. I want to try to get better, even by a little so I wanted to know what is something that I could work on to help with this.

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