When we got Ellie from rescue at 5 months old, she had no training what's so ever, first time I feed her she lunched for the bowl knocking all her food across the kitchen floor (lucky she was dried feed) Counter surfer well it was soooo bad she spent more time with her front paws on the counter than the floor

We even had to ensure the cooker was turned off at the wall when not cooking, she knocked the knobs on
And it was just a case of ensure that nothing was left on counters to encourage her, constantly telling her 'off' didn't use the down command as not to confuse her...
If I had to tell her off when dishing up her food more than twice, I put her food away for 5 minutes then start again, also teaching her to sit for her bowl etc..
She's one now, and only has the odd sneeking onto the counter but really doesn't bother and hasn't for quite a while.. Food wise, well she sits patientanly at my side as I dish, and then waits until I place it somewhere in the kitchen, she won't move until I give the ok command and if I want to I can stop her mid way and get her to sit etc..
Obedience wise the same, keep consistant with it all, and they do click, now at one she doing well she will have her odd days where she decides, nah can't be arsed to listen but that is shepherds for you...
Just be consistant with your training and it should all resolve itself as you go