Here is a fun article about the problems of spelling in English, compared to Spanish.
(You might need to copy and paste the link.)
Sometimes, there is no explanation for how we spell words and it is just a question of practice.
Although there was a system called SoundSpel, created to make spelling much easier, it would be almost impossible for it to be accepted.
I'm an English teacher living in Spain. Having learnt Spanish helped me understand the difficulties language students face.