How can I start learning Hebrew?
Like every other language, learning Hebrew starts from exposing to the language as much as possible. Starting to talk and to listen to someone who speaks the language fluently with the Hebrew accent. After that, you should start to read and write. (So you will get a rich vocabulary and will learn how sentences function.)
How can I learn how to write?
Firs, you should start with learning the rules of writing. Second, you should practice a lot.
How should I start learning English?
Start listening and speaking in English, and on the way, you should work on your pronunciation. (from now on, TV shows will be only in English) The next step should be- reading, which will expand your vocabulary, and help you a lot with the language. After that- start with writing.