I need help

Hey so I really need help the past year has been a dark depressing year for me which I coped with lots of masterbating and went down the rabbit hole that is internet porn. As of 2 weeks ago I have had a wonderful lady enter my life who makes me very happy obviously we have sex and I can't cum Everytime idk if I'm desensitized or like it's the situation we're in cause there other people in the house and the bed creaks like crazy so idk if that messes with my head but in the long run me not being able to cum makes her upset which it's not her whatsoever she's beautiful in the past 17 days I've masterbated 3 times once in bed with her to finish 2 to porn when I would Jack off I'd use my hand with no lotion I've done this for years but the past year has been probably the most I ever have in my life and I watched some real sick twisted stuff I'm in recovery from drugs and alcohol so I get how like addiction works kind of any suggestions would be appreciated please help me I don't want to hurt my partner anymore!!