Don’t take on debt if at all possible. If you use a credit card, try to pay it off each month. Don’t get one with annual fees. Get one that has cash back not miles or points.
Learn to make your own coffee instead of buying Starbucks or whatever. A decent hand grind will last for a decade and cost around $50. A no name pour over dripper and filters are a cheap way to make coffee at home. Buy beans and keep them in an air tight container and they will be good for a month.