Basic pull-up progression? Beginner

Hey I’m looking for any recommendations on workouts to be able to go from 0 pull-ups to 10+. I just started practicing pull-ups and have seen minor improvements.

Right now my problem is I can do about 6 reps with the semi-thick band for my first set, 3 for my second set, and then like 1 for my last. I feel like this isn’t giving a chance for my weaker muscles to continue working past failure. Should I switch into doing something more assisted after failure like Australian pull-ups once I’m not able to do 6? Or should I incorporate pauses or negatives into my first set while I have more power? Once I get through my first set with the 6 strong pull-ups, I can’t even hold myself up at all during the second set to do any kind of negatives. So in general what would be a good routine to be able to increase the number of pull-ups I can do?