Important tip: much is always used together with an uncountable noun (like 'oil' or 'water') while many is always used with nouns that are countable (like 'table' or 'computer')
It's also good to know that 'too' means that you don't like the situation, for example, "There is too much food on my plate" means that you're not happy about it.
Here's an exercise to help you practice. Good luck!
Lesson by Seb, teacher at EC Cape Town English school