Help

im trying to kms basically but not sure how. not many pills in the house so thats out (unless ibuprofen will get the job done), i have a knife but im too scared of it not working and having to explain away the long sleeves in 90 degree weather. i live near train tracks but the train schedules unpredictable and im too scared of surviving that too. ive tried taking my car into a tree but my body physically wont let me and i dont have any gas anyways. any advice?