Unfortunately this is one of the problems with English.
Spanish is a very phonetic language and therefore the words often sound as they're spelt, so I can understand why this must be frustrating.
One horrendous example is the English ough.
But remember that all languages present difficulties. You just have to catagorically remember the pronunciation of these problem words.
At least you don't have to worry about gender when dealing with nouns!
Student or Learner