Read the book (k&b or other).
do mocks.
Practise.
Read again.
Practise.
do mocks.
That's my way
Now I'm in the part of reading second time and I'm getting 90%-95% from chapter mocks. Since i started studying from basis of 1.4 the language has changed a lot.
Read this forum. It helps a lot. If somebody is asking a question, don't look the answer right away. Try to figure it out your self!