[retube]

> Let your old company tell you you can't have your job back, don't make that decision for them.

This. If you were leaving on good terms, and were a valued member of the firm, there's absolutely no reason why they wouldn't take you back. In fact, they should be glad to keep you!

There's no shame in having wanted to try something new. People move shops all the time. So this time you got unlucky with the move, but no biggy. Just be upfront with your current employer and tell them what's happened.