Glad to hear you are getting into SC2! I was stuck in silver for a while and wasn't able to play much. I found out about the "Staircase" Method of practicing and it really helped
My issue was that I was not spending my money efficiently. Because of that I was being out "gunned" and losing a lot. Once I started that method of practice it really helped me get better I am only tip level gold but hopefully will soon be in the platinum league.
hit me up if you want to play/practice (with my limited knowledge): RedHeadKev 1946
God Bless and gl, hf!