Hey. My advise? You must go pesh (retake Amrit)...
When do you decide to go pesh? Hmm. This year? Next year? 5 years or 20 yrs from now!!!?? Will leave that up to u. Deep down u know yourself if you're genuinely re-ready or not. If u think "I will re-take but wha if I make same mistake?" Then leave it off until you genuinely feel ready.
Being Amritdhari no longer means you can enjoy wonders of life; meat, alcohol, clubs, women. However, retaking means you're ready for Sikhi path once again!!!
You made a mistake, yes. But retake Amrit ASAP, wait or give up? Up to you bro.
Brava, you took Amrit but you didn't give your head to the Guru for that Amrit, frankly whatever you do to "make amends" or even "pesh" is useless unless you actually are willing to give your everything to the Guru. If you have this gf of yours, do anand karaj, if that isn't possible then move on.