That's the thing, It may effect you but believe it or not...they want it to effect you. Imagine you work around with a I don't give a **** attitude...everyone would try harder to bring you into their bullshit.
You just let it go, I've learned to understand even if it's own mother cry, you gotta show no emotion and have that I don't care attitude because we are all adults Teenagers as well. Some people look for added attention, and try to force it on you.
It seems like your mom is taking that **** way to seriously, maybe If you actually talked to her or maybe showed her how much the drama is effecting her and you she would but out.
It's all about finding your inner Zen and removing all that bullshit out of your world.
Suicide is ridiculous, It's a cop out. It's pressing the quit button on a video game cause It's too hard for you to comprehend. God, gave everyone life for a reason, wasting it would only piss him off....If I was him I would be.
But like I said, you gotta take control of your own space and put a barrier to repel against the drama where it doesn't even enter your mind. It's just there.