My mother is verbally and emotionally abusive towards me and shows no remorse, when i'm left feeling depressed. what should i do to stay positive?

Get counseling: Seriously, talk to your family doctor, psychiatrist, religious leader, professional counselor (not sure what they're called in australia or tel aviv (both are associated w/your post)). If you're financially capable, i'd suggest moving out (assuming you're still living at home). There's no need to put up with or subject yourself to verbal & emotional abuse. It's not your fault so just step away.

Set limits: When someone is abusive it is important to not allow it to continue. But we can only be abused if we continue to allow it. See a therapist who can help you set limits in an assertive (not passive or aggressive) way. Also check out the book (best is audiobook on cd), the four agreements, by don miguel ruiz. And, as dr. Lin suggests, distance yourself in any way you can, up to & including moving.

Depression: If your mother is abusive this is probably part of her personality or something she is experiencing that does not involve you. I know it is extremely difficult to not take such abuse personally but you need to try as much as you can to separate her actions from who you are. Don't argue with her but in a calm way tell her she is hurting you and your worried about her because of her behavior best.

Abuse: Abusive people dont change or rarely get insight and change, they always feel that they are right no matter what. While i respect she is your mother and assuming you are not out of bounds it is best to stay away from such situations and when of the right age and financially independent move out. Abuse to a minor is reportable by law so please consult your md or case manager or go to an er or 911.