Current YOE : 7+ at a company where work doesn't involve coding. I understand basic concepts of programming and trying to learn syntax for new language. I'm able to do Easy level questions here and sometimes medium as well (haven't tried a lot of questions yet).
What should be my approach ahead from here ? Should I continue doing easy and then medium and then hard or shall I refer some book for starting ?
What should be an average time target which I should keep for myself ?