To what degree do you have to be emotionally healthy and balanced to be an effective social worker? Plz help!?

I ask this as i have just started studying Social Work (have a Bachelor of Arts) but i am worried that my personal issues-current and past will effect my ability to succesfully fulfil the job requirements. Issues such as having drug induced psychosis when i was 17(hospitalised for 3 weeks), depression, and more recently a heroin and ice addiction which ended up in rehab (in recovery and on suboxone now-but have a lot of pain and self-hatred regarding all of these things. Can anyone please give me their opinion about this?