You need to learn something other than English! Spanish has easy spelling rules because it is one sound = one letter. (except for ll - and they consider that a separate letter). It is easy to spell in Spanish because each letter maps to exactly one sound, and each sound maps to exactly one letter.

We can reform English spelling to be the same - but it would require adding about 20 more letters. (I understand languages like French and Polish solve this by having rules of how every letter combination sounds, but I don't know enough of them to explain how it works - but they might be useful inspiration if you don't want to add letters). There should be exactly one way to spell a word, and it should be obvious what that way is by how the word is pronounced.

Of course we also need to reform English so that we all pronounce words the same (goodbye and good riddance to all the funky accents - they sound cool but they hinder communication), and a lot of other related reforms that will never happen.