Based on your previous jobs, you did well. I presume you were suitably paid as well. So based on that you can safely assume that you're doing Ok. From your d

Based on your previous jobs, you did well. I presume you were suitably paid as well. So based on that you can safely assume that you're doing Ok. From your description, it appears that you are currently working in a toxic environment. They haven't promoted you nor have they increased your pay. In other words you have kept your end of the bargain and they haven't. So the obvious decision is to move on. When in a toxic environment with incompetent management, you simply cannot master and overcome the situation. It is not for you to de-tox your workplace.