OpenRA

Let me start off by saying I'm a n00b. I want to become better but everytime I get defeated in about 5 minutes. Where can I practice without ending up in a n00b of the year list?

Thank you very much. Played the game decades ago, so have to learn a lot again

I just installed OpenRA and found out that there is no option to build a silo. Is this a mistake in the game?

Thanks in advance for your help.