First of all,

Welcome




and secondly,
Learning a language needs time and effort, and you said you have neither
So how do you want to learn then???s





Unfortunately there isnt a magic pill that you can take for that


My Advice for you Bro is

Try to expose yourself to as much English as possible, Watch CNN and BBC, Listen to the English Radio
And from time to time. try to read English publications, newspapers. magazines, because they have shorter subjects and articles than Books

And of course
VisitThe (Learn English) room all the time
It is very useful and it has very very useful information

And if you have any questions post them there and everybody will be happy to help you