How to rank up at CS:GO?
Tip 1 : Keep calm, Let the game play you
Tip 2 : Financial Saving is EXTREMELY important
Tip 3 : Check every angle or sides as possible
Tip 4 : Watch yourself on overview, so you can see where you gone wrong, or what will you do in the future with the same situation
=)
Tip 5 : Don't attempt solo queue at early start on CS:GO. ALWAYS FIND A GOOD TEAMMATE. (Or invite friends in game)