Chipmunks are not destructive to plants. I'd leave them alone. It has grown well, but now we have a 4'holly stalk. But I'd wait until spring to do that. If you prune now, the new growth may not have time to harden and could be killed by frost.
Forsythia goes wild.
You tame it by cutting it back, again and again. You could start now. All American Girl rocks out American Girl rocks out American Girl rocks out. All American Girl rocks out American Girl rocks out American Girl rocks out. All American Girl rocks out American Girl rocks out American Girl rocks out.