Most important of all is to stop playing on auto-pilot.
Of course, creativity isn’t learned in a day. You will have to put time into the game, study the pros, and watch your replays. Most important of all is to stop playing on auto-pilot. Be present in the game, think about your strategy while approaching an enemy, and try to read their plays as well. Actively thinking and being aware will help you be less predictable and a hassle for the enemy to deal with.