I (22 M) keep staying at half mast

I had this annoying issue for the longest time, that whenever I jerk off, no matter how satisfied I was or what time of the day I did it, my dick stays at at least 3 or 4 inches making a visible bulge in my pants the day after. I literally can't jerk off unless it's the weekend or I have two days in a row free, it's annoying. Does this happen to anyone else? Not trying to brag, it seriously is irritating.