Medication and feeling hopeless

Long story short.

I feel so compelled hopeless in work. I mistakes even if I try my best to not. I’m terrified of my manger (when I do something wrong she gives out to me and makes me feel small- even though she knows of my ADHD) I hate my job, just started 3 months & I am starting to dread it cause I’ll get the blame for things going wrong etc.

I am looking into coaching & medication. Will they help my confidence, my self worth & over all time in work?