Are you depressed ? Talk to your friend about it. Are you depressed because you can't afford your mum's treatment ? "Don't come to me for money bruh". It frustrates me no end when I see this nonsense about not mixing finances with friendship. The lack of material understanding of suffering is so apparent in that stupid advice. Friends should exist not just to offer a shoulder to cry on, but also to lend a crutch when you have trouble walking. What conception of friendship puts one of the main drivers of despair and helplessness (financial troubles) outside the bounds of cooperation. Pretty sure the first person to say these words was a feudal lord to a peasant with whom he would otherwise enjoy a nice drink and lively conversation.
To any of my Toronto based chapos, if 100 bucks in cash can help you with something, I will be more than glad to give it to you.
I mean this wisdom is good if you modify it to "never loan money your not okay with losing to a friend". I'm not going to take on the role of creditor in addition to friendship, but if I can afford to help out whether or not I'll ever see the money again I will.