I waste so much money on groceries cause i just throw it away before i even finish half of it . I…

I waste so much money on groceries cause i just throw it away before i even finish half of it . I buy food for myself so its hard to eat everything i buy . And i have a problem where if if something smells everything by it near or whateva is alllllll bad lol really need to work on it cause i hate wasting food but food poisoning is no joke.