don't waste
Don't waste your time.
No malgastes tu juventud, si no, lo lamentarás más tarde.
Don't waste your youth, or you'll regret it later.
No malgastes tu dinero en comprar cosas que no necesitas.
Don't waste your money buying things you don't need.
No malgastes tu tiempo y dinero.
Don't waste your time and money.