Just start. It's not that difficult. Well, it's impossible to learn a new language immediately. So, make sure you enjoy the process. Do what you love to. Don't do what you don't love. I'm serious. If you're fed up with grammar exercises, just stop. If you like meeting people - find an English club, meet new people and chat. If you like reading, read in English. If you like singing, learn some songs.
Don't work too hard. Study English just for 15 minutes, but every day. Frequency is more important here.
And step by step you'll get it. Don't worry about memorizing. If you practice quite often, new words and rules will be learned by themselves. But it's very important to write down new words with examples. And repeat this examples out loud at least 10 times. (Then 10 more times a week later, and another week later). Or you will never use that words correctly.
That's the strategy.
And - you already speak English! Cheer up and keep going. ;)