I get sad a lot. My mood is always low and it's affecting my daily life.
Why's that? Have you tried seeking help at all?
My grandma died, and I am very depressed. I haven't sought any help because I think it's temporary and I might get over it.
That is upsetting, I'm sorry to hear that. Yes, it will take some time to get over it, sometimes talking about it helps.
I feel guilty and angry because I wasn't there for her when she needed me.
Well don't beat yourself up over it, there isn't anything you change about that now. I'm sure your grandma loved you deeply.
I've been contemplating suicide recently, and I have trouble concentrating. I hope I can overcome this feeling.
Definitely do not do that! You should seek help, there are trained professionals who can help you deal with this.