In the previous lesson I encouraged people to send me their chess questions:
This time I answered the most popular queries. Here you’ll find some tips on avoiding blunders, pawn structures, planning, proper training and many other useful things.
Check it out, and most likely this will clarify some of your questions as well.
You can study the 1st part of this lesson here: http://chess-teacher.com/gm-smirnov-answers-students-questions/