Masturbation Problems

I have recently been trying to explore masturbating and have been reaching some difficulties. I have tried toys, my hands and things like watching porn, looking at photos, and my own imagination to masturbate but every time I do it either feels painful or it doesn’t do anything for me at all like a little sensation and that’s it. When I have been a little touchy with others or when others have been towards me I have noticed me get very turned on and do orgasm and same thing happens for me when I have wet dreams. I am horny a lot but when I masturbate I come across these problems. I am very tight down there so that can explain the painful part but everything else I don’t know why that is happening. Can someone help me with what I can do about these problems.