How to learn English?

I'm still trying hard to find a new way to learn English. I have spent like 30 years in English learning and still am not feeling comfortable using English. I can blah blah here by writing some English-like sentences for some extended time but I don't think my English can be improved though that way. I need somebody to correct me when I'm wrong. I cannot afford to hiring a private tutor for that purpose and think one feasible way to learn English is to translate native English into my native language, which is Chinese and then translate it back to English to see how close my English is to the native English. Do you think this is a good way to learn English? From today on, I'll try it.