I really suck at speed-chess. Help needed.



Assuming not to play in blitz until you are 1.2 or 1.3k elo in rapid is a wrong assumption, atleast in my opinion. To improve in blitz you need to develop genuine game understandings and develop your own tactics, watching videos or overviewing grandmaster games can help. If you have gotten some bucks in your wallet, I'd consider a chess coach if you are serious about chess as a career.