Learning any language requires a lot of commitment. you really have to put too much effort on it. as long as you are motivated you'll do great. make a schedule, read some articles or practice on Duolingo (which has helped me a lot honestly) how long will it take you i don't know, it's up to you. good luck!

Thank you for your tips, but I have a problem I am unable to find anyone who speaks English

for me it took 1 year to be good in language. but it's different and change from person to other and the most important thing you must know that how to learn this language whatever this language by the common ways. make scheduled. find good website and language partner to help you to get what you need. Etc Good luck