Having problems with erection before penetration

Hey everyone, I was possed with this situation everyone one of my friends dream of, a THREESOME, and I missed my shot at the age of 21.

Prior to this BLESSED scenario, I have been masturbating, watching porn, and orgasming on my own since I was 14, all while maintaining relationships and being sexually active with my partners. I never truly had issues with getting hard until I was 19 and I had to put a little bit more effort on my part, which was quite embarrassing at times but I never gave it any attention.

Fast forward to this scenario. A couple of coworkers invited me out to a club one night and the majority of them were females that I was attracted to. The entire night I was entertaining 2 girls that I was attracted to and I know I would have no problem getting in bed with, so I was confident that when it does come to bedroom time there would be no issue. Couple shots, more like 7-9, of tequila in and the night, turned out even better. We call an uber to go back to one of the girl's place and it is a packed car so we have to lap up. 1 of the girls I was attracted to was on my lap ANNNDDD OFF RIP my jr goes from 25-100 and stands tall like a soldier. Needless to say, it didn't help that she was rubbing it intentionally the entire ride back. *Keep in mind, I have been masturbating since I was 14 and at the time of this scenario I was 21.* We get back to one of the girl's place and everyone else goes their separate ways besides the two girls I was fond of. One steps into the shower, THATS when I knew for certain the position I was in. Things start to calm down, nobody is really drunk but everyone had a buzz, according to them. I, myself, was too excited to and eager to find out if the threesome was going to happen to truly understand if I had a buzz or not. Time passes and we are all laying in a bed, I'm in the middle, and both their legs are placed on me. NOW, I can not understand for the life of me why my jr was not responding to the signs that were being laid right in front of me. It was like it ignored all signs after we got out the uber??

I COULD NOT GET ERECT.

I had to get out of the situation and fast because I tried everything to get it up and it did not work. I was confused. A week prior to this I had issues with getting it up but, I was actually able to proceed with the shenanigans. This time I had no clue what was wrong. Ultimately I left her house @ 6 am with the excuse that my dog was giving birth, which she actually was!

Ever since that day I've been having trouble getting my jr up with my following partners & sometimes I could not even follow through with the shenanigans.

Yes, I continued with masturbation even after the failure of that threesome event. I am now 23 and have been masturbating with porn for 9 YEARS, and it was at least 3 times a week and max 5! I am currently on day 17 with no PMO, but I want to ask.

Does too much masturbation cause erectile dysfunction?
Does abstaining from PMO help recover from ED?
Does Horney Goat Weed cure?

Kinda lost and I need help.

Thank you for reading and sharing your thoughts.