So, I am new. I have only played like 10 games. In nearly every game I have been flamed several times for being new, and not knowing how the tech works/unit composition/counters etc, and I have been banned a few times from sessions. I guess this is normal behavior here? First I want you to look at it from the average war2 players perspective. Warcraft 2 is over 20 years old and many players on the server have been playing it this whole time. Players who are playing on this server take it seriously, the average warcraft 2 player plays between 20-30 hours a week. Which is as many hours a part time job would give you.
Players don't have a problem with new players, however they expect new players to know the basics before playing in an actual team game.
My suggestion for you would be to try your best to learn how to play war2. There are many war2 training vids the war2combat channel
VIDEO
If you are getting flamed simply use the /ignore command and squelch the one who is flaming.
Also maybe try playing against some comps. Try to make a goal of beating 6 comps without dying and without using cheats.