Saber Inglés

Hello, I find this forum today, and I'll happy, because I want to speak English, I love this language and I'm thinking of starting next September an English teacher degree in my country. I'm a teacher of children between 3 and 6 years old and I would like to teach English too because, in my country, almost every school is bilingual and I need English to be a good teacher ))

If someone can give me some rules to learn English, to practise, etc
I think the most difficult subject about English is speaking, but I don't know what about you?

Sorry about my mistakes, if you want to correct me, I will please yo.

See you soon!! )