I know the method of doing Istibra after relieving myself. It might sound gross but I'll describe it anyway. First after urinating, one pulls upwards thrice from the anus to the scrotum with the middle finger of the left hand. Then by placing the left forefinger on the top and the thumb below the penis, squeeze from the root to the tip. And then press the tip thrice.
But here's the problem. The first part where we pull upwards thrice from anus to scrotum, it is hard for me to do somehow and as a result it has become an obsession and I end up taking more than half an hour in the washroom. Can I just skip this part and do the squeezing part???
I have OCD by the way.