[Porsche-O-Phile]

God put your eyes on the front of your head for a reason. Look forward, never back.

You had the time to make your decision and you made it. Stick to it. You're in a position that several million others would kill for - having multiple employers vying for you. Count your blessings, do the best you can at the new place, find an aspect that interests you and emphasize that. Re-evaluate in a few years.

Good luck.