Its only been 4 days, be patient grasshopper.
You were over zealous in your routine, you’ve hurt yourself and now you have to take a hands off approach and let it heal. This is why we tell newbies to take it easy. You have one penis and you did to much. You may have to take a couple of weeks, as in 14 to 21 days off from masturbation, jelqing, stretching (not even a piss pull) to let things heal.
Once its healed repeat after me, I have one penis, I will not hurt it. Say that 50 times a day until its ingrained that more is not better.