How Can Penis Sensitivity Loss With Premature Ejaculation Be Treated?

hi i am 26 i started having sex recently and i am not feeling any thing after inserting my penis into vagina i feel like i am in a jelly bowl though i have a decent size and my partner says i am very much used to hold my penis with a lot of pressure and masturbate with lot of speed to ejaculate hence i am not getting the same feeling while i am actually participating in sex please help me doc.