I feel Your pain. And I have a advice: take a deep breath and leave. Because burn-out is real, because there is nothing that can compensate damages of Your mental health.
You are still a human. You are intelligent. Yes - you are, this is demonstrated by the ability to think critically and independence of your views. So - You are capable to adapt into new environment and into new tech. Search for anything and switch job. Don't wait for a toxic environment to destroy your confidence.
You are still a human. You are intelligent. Yes - you are, this is demonstrated by the ability to think critically and independence of your views. So - You are capable to adapt into new environment and into new tech. Search for anything and switch job. Don't wait for a toxic environment to destroy your confidence.