I rage at everything now I’m actually worried about it

I guess 15 years of not being believed i am masking 100% of my human interactions depletes me of empathy. I have caught myself many times having to apologize to workers and people I see in public because of what I said to them I have a really low tolerance lately of “stupidity” or what my freak autistic brain identify as stupid. I have not been able to hold a job because of this. Any suggestions in Canada for resorses for any type of help would be appreciated. I’m scared to talked to the doctors because of what might happen such as pills or seeing me as a danger to others.