Hi Juri
Many on here may regard this as heretical; I think you`ve used too much force.
The hanging weight is, in my opinion, excessive, as demonstrated by the damage you describe which caused you to have to stop.
There is a prevalent idea on here which I think is erroneous; that PE is achieved by a process of “micro-tear and healing”.
Micro tearing means traumatic damage and when that occurs anywhere in the body, the healing involves a “downgrading” of tissue to one which is more resilient and sustainable; ie scar tissue.
It is a physiological property of scar tissue that it always contracts. Hence, with micro-tear and the resultant scar tissue, you will find it very difficult to increase length.
I think PE is achieved by moderate sustained traction over time which facilitates cellular growth through the normal cell death and regeneration cycle.
If it were me, I`d stop for 6 to 12 weeks for healing to be complete and then start again on a very moderate newbie routine emphasising gentle jelqs to get blood into the tissues and then moderate stretching (ie jelq/ stretch rather than the usual stretch/jelq)
I hope that this is of some help. Happy to discuss further if of any value.
Regards
Stanby