After getting stuck in the snow my reverse is not working well, any suggestions?

Yes it's automatic

Nothing is harder on an automatic transmission than being stuck, spinning the wheels and shifting from drive to reverse! .. Of course I don't know to what extent this was done nor the exact symptoms it has now but if it was excessive at all, I suspect internal transmission damage. .. Needs to be checked out 'hands-on' by qualiqualified personnel... Good luck with it!