Trauma from previous job, what to do?

I got a traumatic experience from the my previous job in parallel with my personal circumstances around 6 years ago, and I got some sort of PTSD (not clearly diagnosed, but having continuous anxiety on the work), and I am still in the process of healing. Due to this trauma, I have to spent almost 5 years for psychotherapy. I have to max out my HSA contribution for my medical expenses as well. It is still ruminating time to time.

I would not disclose the name of the automotive company, which is big. That company is having occasional history of workplace bullying especially toward women and minorities. I am still witnessing the news with huge compensation and settlements.

I might not be a good fit into that department (with lots of Trump supporters) and that specific job, but I was not given enough information (through job posting from college mailing list) or misleading information when I applied the job as a third-party contractor. I told what is true while on the interview. I spoke slowly because I am not a native speaker of English during the interview. My resume was including small college projects (one is little bit relevant to automotive.) and small biomedical backgrounds.
What can they expect new grad with Master’s degree without any industry experience, just with small research projects in university labs, who is having minimal background knowledge from automotive field except some coursework? I am not sure about of intention when the company hired me.
I was surprised that the job role and task assigned were so different than expected. I am still not clear why I was not terminated during first three-month period. I was not able to easily quit because of OPT rules, pressure from my parents, and my financial circumstances.

I tried to share every experience I got, but those were too immense and enthralling to go through at here, and it might lead some bigger problem later. They include some unidentified shadowers outside, verbal harassment behind the cubicle, passive-agressive treatment, sarcastic weird puns during meetings, unexpected weird comments (about honesty and ethics) out of context on conversations, puns about other cultures (especially about Asians), dirts on my vehicle (bought while I am on college, but with other Japanese brand), treated as a corporate spy, and isolation from young peers.

My mental health issue with my personal circumstances were contributed to make me slower and to worsen my anxiety symptoms. I was so slow and struggled to do something. I frequently suffered unexplainable frequent drowsiness while I am working at the job as time goes.
I am also regretting that I was not able to collect evidences of this covert bullying. Although I cannot start the lawsuit, but it could bring some attention of HR, higher management, or even chairman.

The job 'contract' was done after a year. The agency company promised a transfer, but it was not fulfilled immediately. The company did (or cannot) give estimated timeline and schedule properly. It was offered after a month, and I told that the alternative position might not be a good fit during the interview, and there was no further interviews with other positions.

In addition, even in my current job, I faced some incompetent managers with passive-aggressive treatments or tantrums and unrealistic expectations. The attitude of managers were changed after I was burnt out by prolonged period of overtime. (due to those events, my mental health, which was little bit improved while job search, was deteriorated again more)
I am thinking about changing my jobs, but I am just giving last chance to my company if they finally start to PR process as the benefit of doubt. The company delayed the Green Card process for around 4-6 months in the undisclosed approval chain to face Trump’s Green Card Suspension Executive Order. They resumed this on last 3 months ago, but it is still pending way before sending ‘PWD Application’. The HR told me that they are facing some ‘problem’ without the detail. I would feel something suspicious that the company deceives me (‘to throw me under the bus’) or wants me to send (transfer) outside of US.

I am not sure, but my psychiatrist told me that I am showing ADHD symptoms at work. I am not sure how to navigate the career if those symptoms are impacting my productivity. I was told that I was inattentive when I was at elementary school. Those symptoms were worsened while I am undergoing those horrible treatments. I am prone to minor mistakes time to time, and it worsened now.
I need medications to sleep, and I sometimes suffer heighten heartbeat while I am trying to sleep. (especially without medication)

Backgrounds are above, and below are my questions.

1. Although I cannot do the lawsuit (even reporting to local media) because the evidence is not enough and I cannot handle this effectively, is there any way to get some kind of apologies or give a feedback for better workplace environment?

2. How I can recover from this trauma? The impact is still continuing.

3. How to navigate my career with some sort of ADHD symptoms?

4. As an alternative of Green Card in US, is it a good choice to enroll in Canadian Express Entry? (I don't have enough score to get automatic invitation.)

#mentalhealth #trauma #PTSD