Help me save up for a new working device

Greetings. I'm not the kind of person who'd just ask for money without serious reasons. I work as a teacher and due to covid lost one of my main income. That have made my life really hard, living on less than $400 per month. I live with my mom (she had a serious surgery last year) and grandma, whose health conditions demands a lot of medication (not to mention my own).

Deciding to make art for money, I've faced next problem - my graphic tablet perfoming worse each day. I'm afraid that I won't be able to finish the commissions and I'd lose next source of income.

Examples of my work:

This is the reason why I ask for help. I know that there are generous people who are willing to help.

New tablet would help me earn more money to keep my mother and grandma's health well.

Thank you in advance.