I can suggest any new player to directly switch his keyboard settings to grid optimized. This will help you later be more efficient and you won't have to relearn hotkeys.
As a beginner check out all the web and video guides on the BAR website:
Beginner Eco
https://www.youtube.com/watch?v=0A-1XMF7s_k
Basics
https://www.youtube.com/watch?v=68rIRKXO3us
https://www.beyondallreason.info/commands/queue-multiple-commands
Watch the starter guides from Wintergaming:
https://www.youtube.com/watch?v=FNi_Fyj7W68
https://www.youtube.com/watch?v=8ogvWrMuMLk
https://www.youtube.com/watch?v=dBNPHSwTEf8
https://www.youtube.com/watch?v=qpWMBuL7SNc
https://www.youtube.com/watch?v=wAEIMzbTlAs
https://www.youtube.com/watch?v=m-qLpLpxAJA
https://www.youtube.com/watch?v=svlFz0zJit8
https://www.youtube.com/watch?v=rRtTridfNZM