Bit over a year ago I couldn't do a single pull-up, now I can do maybe 3 sets of 8, which I find very good. I feel like the normal pull-up is bad on my wrists and shoulders so I mostly do chinups and neutral grip, but same goes, I can do around 3 sets of 8 give or take a few reps. How do I advance further? I've been stuck on this for very long, I guess I tried weighted pull-ups but I don't really know how to overload correctly if I want to progress (as in how many sets, how many reps? What weight?), so I thought I could use some help from here.