Beginner with massive donut.

Just found this forum not to long ago.. Last night I tried to pump. I did about 3 hour session, with breaks every 30 mins.
My cock was nice and plump, and I had a huge donut! I have read a couple of posts, and read some tutorials, most of these guys say that the more freq. You pump, the less and less the donut will appear. Is this true.

Do I need to pump with warm water to help offset the donut effect? Longer breaks? Jelq in between sessions?

What can I do to help relieve the donut effect.

“Last night I tried to pump. I did about 3 hour session, with breaks every 30 mins.”

You tried?? You over-tried. I hope that wasn’t your first time using a pump.
I suggest you to read, carefully, the pumping101 tread.
The donut effect, for what I read, is something that you don’t want to have.
Pump less, much less.