First time masturbating

I decided to try masturbating for the first time recently. I have almost zero desire for sex, but friends were telling me it felt really good and I should try it. So I decided to try it. It was strange because I wouldn’t describe it as a pleasurable feeling. I would touch myself and all the muscles in my lower half would get really tight and I would tense up. I don’t know if I just wasn’t really in the mood or if I was doing something wrong, but it just wasn’t particularly enjoyable or something I wanted to spend more time doing, so I stopped. I guess my question is does anyone have any experiences similar, or has tried masturbating with low sex drive? I’m not sure what to do