If I understand the question I can atleast try to solve the problem but most of the time I don't even understand the question.

I know I need to practice. But in which way? Which problems should I solve? What was your strategy to improve when you were able to solve only A

I'm still newbie and cannot solve 1600+ rating problems. Should I try to solve those? Most of the time I cannot solve those and I have to see the solution. I have a feeling that I would not improve if I only solve 1000-1200 level problems.

I'm solving problems for the last 1 year and failed to improve. Please give me suggestions about what to learn, which problems should I solve to become an expert (blue) within a year. Also please tell me is it possible to become blue in codeforces within a year>