I agree with needing more information. The dog is just over a year old. The OP has had many threads asking for advice on behaviors.
It would be helpful to have a general idea of how the dog is doing in training, what training methods you are using and how often you are conducting training sessions.
Last March you posted about clicker training the heel. Did you continue that training?
If you are really struggling with a connection to the dog and with the concepts of marker training, a few sessions with a trainer could go a long way.
When a dog saves the life of a man, it becomes clear that partnership knows no bounds.
Fama - T.E.D.D. OEF XI-XII (GSD)(RET)
Marshall - T.E.D.D. OEF XII-XIII (Lab)(SF EDD)
Lucian - Med Alert / Mobility SD (Cane Corso)
Pud - the old man (Pit x Lab)