plucking hand pain

Hi! I have been practicing slap bass for quite a while now and continue to hurt my right hand pointer finger when I try to pop the D string. I can pop the G string just fine, but when I pop the D string, the cuticle on my pointer finger begins to rub on the G string as I go under the D string...

been playing for about a year by now. A few months ago, I saw a video of a guy playing bass and realized as I was watching more videos, everyone has their entire wrist in the air, and only the thumb is pressing. The way I did it so far, was to rest my entire wrist on the bass, as the thumb...