Hm, if your unit actually tore maybe, just maybe ;) , you overdid it WAY TOO MUCH.
But since you had that injury already.. Don’t do anything that put similar stress on your dick.
In other words: Don’t do jelqing, clamping, etc.. Anything that raises the pressure in your unit.
Stretching may be ok, depending on how deeply injured it is… I’d lay off PE totally for -say- one to two weeks.
And yeah, I had that happen to me.. It was going like this:
Did some strong pressure jelqing, followed up by clamping to keep my unit inflated.
After that did some manual clamping while jerking off => A dark spot on my unit’s head showed up (and did so after I removed it again.. and again.. AKA blood spilled out).
Took me two to three weeks until I felt it’s safe to do some pressure-inducing PE again.
On the topic of overdoing PE: May I kindly remind you that PE is a marathon, not a sprint? :)
PE is to _encourage_ growth, NOT FORCE IT :)
Good luck on your healing (and hopefully gains after the extended healing break),
Ys