Am I going mad?

My mental health has never been perfect, I have a few problems (Bipolar 1, Anxiety) But it’s definitely not the worst. This past month however, my mental health as a whole has taken an absolute pitfall. I started out super depressed and suicidal, and then for 2 weeks I went into a mixed manic episode that I thankfully ended up getting through,

The last week of my winter break was hard and it’s only gotten even harder now that school’s started back up. I’ve been suicidal, so suicidal in fact to the point to where the only thing I think about is suicide, my sleep patterns have gotten weird and all out of order, yesterday I fell asleep at 6:00 pm and slept the entirety of the day, the day before however I fell asleep at 2:00 am and barely got any sleep. 

My thoughts are the most concerning to me, they have turned all into a distorted mush, literally the only thing I think about it suicide, I can’t stop thinking about it, it’s turned into an obsession, I wake up and my head says “Lets go kill ourselves!” I literally have the constant urge to get a knife and perform amputations on my body parts. Most of the time I don’t even know what’s going on, I forget most of my days I really only remember small flashes when I try to think back at what I did yesterday.

Socially I avoid any and all interaction unless it’s absolutely necessary, the only human I talk to that’s not my parents is my best friend who’s concerned for me because he’s been noticing some behavioral changes (he has no knowledge of my mental health) he’s concerned I’m going insane and wants to get me help. What do you guys think?