Out of LTR and sexually dysfunctional

Mid 30's gay guy here. A month ago my 5 year relationship with a guy ended. The sex with him was close to nil the last couple years of our relationship, so to cope during that time, I basically masturbated my way to sexual fulfillment, often arguably over doing it (edging a lot) to porn, camming with random guys, and sex chatting.Now that I'm out dating again, the guys I'm meeting can cum easily from a blow job and stay hard while we're fooling around. But when it comes to me getting hard and getting off, I feel like I've become sexually dysfunctional because I often can't get fully hard being with them, or it takes me forever to cum, or sometimes I can't cum and they give up, or I have to jerk myself off. I feel embarrassed by it.If I'm not looking at porn, chatting or stroking my own cock alone, I pretty much find it difficult to stay hard with a guy or get off. I've been really attracted to the guys I meet. I think porn and sex chatting have fried my sexual wiring.I can imagine the obvious answer is that I cut back or abstain from masturbation for a month and see where that leads. I'll try that. I just want to hear from other guys that I'm not alone. It depresses me I'm like this.