Is overusing a hydromax water pump causing my inability to get an erection?

Hell doctor. I am abit worried right now, I am young and stupid but im embarrassed to say that I have a small penis. Anyways I tried to make it larger through something called a hydromax water pump and it was working but about a few hours ago I overused it and when I removed it my penis went from hard to soft instantly, I never had that problem before and im not sure how to fix it. I tried to make it hard but it's not not budging, it is swollen but I can still feel it's there and sensitive. It just won't get hard, it doesn't hurt or anything, it is slightly swollen, but I just cant get hard. Please give advise as im scared I won't be able to get hard anymore