Hi 14u welcome to the Forum!
Quite simply, you are using too high a vacuum. And your penis is probably not conditioned to stand up to the vacuum involved.
Do not go over 3hg (if you don’t have a guage, then just have it at a very low level of ‘pull’)
Also you are trying pumping too soon. You would do better to leave pumping alone for at least 1 month. better 2 months. And do the Newbie routine now.
There’s no shame in doing the Newbie routine (Most of us have done it),
But there is pain if you do the pumping too early.. as the next stage of overdoing it will be a hard flaccid penis. Which will put you out of action for a couple of months
Best leave everything alone until the blisters have gone. Then start again.
Hope that helps.
Petit
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