It sounds like you are trying too many different kinds of training with this dog. I must admit if I were him, I would be confused too. I was getting confused just reading the post!

Be aware that the pop and choke method you mentioned at the bottom of the post is really not a positive dog training method. It is a correction that the dog gets when it does something wrong. In positive dog training the dog gets a reward for doing something right and doing things wrong are ignored.

Basically, your dog does not recognize you as someone who has authority over him. You are doing a good thing by getting someone to help. It is hard to give advice without seeing how you and the dog interact together. Try to find someone with a lot of experience and a proven track record. Perhaps your vet can make a local recommendation. I'm wishing you the best success!