In my above message I meant do not see porno.
2 times a day is way too much, you are emptying your balls before it has the time tor echarge.
What is your age ?? How long has this been going on??
Reduce frequency of masturbation.Do not stop see porno. If you are natura aroused, then only do masturbation. Do it with lubricated hand. Do not stop breathing.
It is likely that you have retrograde ejaculation.It means part of semen goes to bladder, instead of coming out from urethra.You may consult any urologist for this problem.
Google anal breathing. This exercise will help you many of sexual problem and enhance your health.