In my opinion, generally depends on the race, there are some mayor tips u can follow from guides in youtube Winter gaming and lowko TV are great channels for learning considering casual play, cause the pros are something else.
My advice is playing the game the most macro oriented build, practice it till u get it right (u can find the build in help tool by overwolf, spawning tool) then u will start understanding the match ups what ur oponent can and cannot do at certain timings with the info u get with the scouts (worker count, number of bases, amount of gas, tech, amount of army)
Also try to disable the whole army hotkey considering the rising of nydus worm play.
If u wanna practice i can help u with that