(i will actually fully write this out sometime i swear but I'm feeling lazy rn)
Pretty much the worst thing you can do is overwater your plants. Even underwatering is better. Don't water on a schedule; figure out how your plant tells you it's thirsty and water then. Also do your research.
-grow your plants in soil, not refried beans
-plants need light
-experts generally advise against microwaving your houseplants
-google and local plant stores basically