<human>: Provide a brief overview of the text.

For those that didn't read my name, this is a throwaway and I'm very annoyed by this. Okay here goes.

I'm a 20y guy and lost my virginity ~4 years ago. In the beginning I always came very quickly. My girlfriend got bothered by it alot and started cheating on me because of this.

After that, I got very depressed and it made me feel so insecure not being able to pleasure a woman well, and having less enjoyment of sex than most other people.
Since 1,5 year I have a new girlfriend. For her I was the first and with her I managed to last a little longer in bed but still not longer than ~8 minutes. Because she is pretty tight we're basicly forced to use lube, since it only hurts otherwise.
She doesn't seem bothered by it, because I am pretty good at foreplay and I always invest a lot of time to pleasure her before we 'do it', but that only takes the problem away for her, not for me. I still enjoy sex for a very short period of time.
<bot>: I come very quickly during sex and am wondering if any of you have/had issues with this and how you extend your sexytime