I live with Iker. Start small. Treats in the house for just being himself, treats for coming when called, treats for getting up when you get up, etc. until he regularly accepts them. Then you can slowly start to give treats for behaviours you want him to repeat. Treats for walking out the door two inches, then back inside. Treats for walking outside two feet, then back inside, etc. Keep expanding the amount of time. change the locations, but always treats, but start SMALL.In the meantime, keep him away from the big stressors except for little bits at a time. Or accept the fact that he just might not be the sort of dog you can take out and do things with. Be bombproof,patient, don't tense up or get upset, keep your sense of humour and be very patient. I think you're nitpicking but that is just my opinion. I'm no expert, but what I do know is that two months is nothing.