I don't know what to do anymore.

I barely have a social life left and these last 2 weeks of university are absolutely the worst. All my assignments are due and one after the other and it's stressing me out. On top of that I have the added pressure of applying for masters programs and if I don't secure an admission offer I'm going to have to leave the country I'm in since I am an international student.
What will my parents say, they poured so much money into my education. All of it will go to waste.
I feel like a waste, I feel alone and I feel like I can't carry on anymore.

The pandemic just made me realize how alone I am in this country, I try to be optimistic about the future but my mind bogs me down with all the worries that I am currently facing.

I have been having a lot more suicidal thoughts and I just feel like I should stab myself to death or overdose on something. But then I'm also afraid that I won't be able to do it correctly and I'll end up worse off. 

I don't know maybe can someone tell me a sureshot method to kill myself? Enduring the pain while doing so will probably be worth it, since it will be short-lived.