PLEASE HELP?!?!?

I am having a really difficult tome in life rn.

My (ex) boyfriend cheated on me a 3 weeks ago (I broke up with him), my grandmother (took care of her everyday as a CNA at the nursing home) died 2 weeks ago, and now I just found out that my dog (12) has a cancerous tumor by his heart...

I am 19 and just started nursing school abd am happy I got accepted and all, but these life changes are throwing me through a loop.

On top of that, I deal with depression, anxiety, and PTSD from being raped and abused at 13 to 16.

I overdosed January 2016 and was in the ICU for 16 days.

Long story short I have had a horrible day and could not concentrate on studying and have an Anatomy and Physiology exam tomorrow. I don't know what I am going to do and don't want to make up excuses, but I am not doing so hot right now. I've had suicidal thoughts today and it scared me. I will not try anything, in fact I am 17 months clean from cutting, but damn it hit me hard today...

Could I email my professor and ask to take the exam one day later? For example I would take it Tuesday instead of Monday...

I don't want to seem like a weak nursing student or a bad student, but it would be the only thing to make what I'm going through a little more livable right now... What do I do...?

Talk to a school consular first or the professor or what...?

Sigh...