Hey response! I’d say give it atleast 8 weeks off or maybe a bit more to be safe. I say 8 weeks because 2 things come to my mind i.e You had an injury while clamping which basically means that your capilarries/vessels were weak enough to rupture due to pressure buildup while clamping. When you clamp the pressure tends to remain constant over a period of time unlike in jelqs where it lasts for 3 seconds or so. You been doing 3-4 12 minute sets. Now thats roughly about 48 minutes of clamping which IMO is really going overbaord. Add to that abuse from the past. Thats a bad scene. You bled now doesnt mean you injured now. Bleeding is probably the final,visual stage. God knows whats been happening inside your dick for the past few weeks.
Secondly you said you discharged blood while peeing. Im not sure if there has been a damage to the uretral tubing but bloody peeing is not a very good sign. If the damage is small, you wont see a bloody discharge through the urethra. You are more likely to see red spots all over the glan in that case.
No matter what, A bloody dick is not a good thing. I was injured once for which a took a couple of weeks off. My dick looked fine and worked fine after the rest so i started PE again only to end up screwing my dick badly the second time. I went off PE for almost 8-9 months after that. So, im saying that 2 weeks maynot really be a good deal. Wounds appear to have healed from the outside but then there is a lot happening on the inside. Im sure you dont want to take a big chance. Believe me its not worth it.