Help me

I’m an 18 year old and I’ve just gone to my works Christmas party, I knew there was going to be drinks involved but didn’t want to not go and be unsociable. However I prayed before for the lord to give me the option out. And I knew there was I could’ve just said I’d driven or any other excuse but u didn’t and I had a beer and a half and a shit if wine during beer pong, now I was no where near drunk but ashamed, of myself for giving into pressure because everyone else was drinking and I’ve done this on a Sunday. And they all went out to have more at a pub after but at that point I left. I of course want to ‘fit in’ however I haven’t drunk in months because I’ve been growing ever close to the lord

Please help me