Hello I'm 21 Years Old Male And Masturbating Since 8

Hello
I'm 21 years old male and masturbating since 8 years approx 5-7 times in a week.
After ejaculation ,if I continue to rub top of my penis, then I urge to urinate (from past 1year)
Is this normal??
And also the time taken from tightening of my penis to ejaculation while masturbating is 1-2 minutes is this normal or not please suggest
My physique is good
Height - 5 feet 11 inch
Weight- 75 kg