Surgery tomorrow and scared

Hi all I'm going in tomorrow for my surgery 

lumpectomy and lymph node clearance 

I'm terrified , all sorts going through my head 

will I remain asleep through operation , will I die on the table, will I catch covid, how will I feeel after , can I cope with my good arm restricted , uoset I can't have anyone with me and that I have yo stay overnight 

Can anyone who has been through this put my mind at ease as what to expect please 

thank you