English language is always difficult.I learned long time,but it seen is too bad.sometime disappointed to learn

Who have a suit method to impove english language skills?I can write a good sentence in long!^_&.

i dont know how to use the different adjective in the sentence.

for example:attractive,attractable...they also re adjective,but when we use "attractive" when we use "attractable"?

should we know more one languages,but we never spend it much?we will forget when no use!

I have been learning both chinese language and english language.In the precious time,i wrote chinese language very well and i spoke it well too.However,I no use it in real,that is why i forget almost.So we should learn language while we rarely use it daily?We will start at zezo if we no practise it everyday.

how to improve writing skill? i am not confident to write cover letter to submit because i am scared i get mistakes there.

how to improve my english speaking without communicating with native-speaker. i learnt english hard,but my speaking is not good.The most difficult of matter that non-native speaker havent envirorment to practise english;therefore,we learnt english many years,then we still forget already.

how to write a long sentence without wrong grammar?i want to write more complex sentence in english!