Wow, we're getting at least 2-3 posts like this per day, it seems.
Do a search for beginner strategy, strategies, or economy, or economy help, etc. You'll find many threads with a lot of good advice. I'm sure people are getting tired of giving beginning advice in a new thread every single day. I know I am.
But it's already here on this forum, so just search for it. If you can't find anything, post again saying so and someone will probably point you to the exact thread you want.
Good luck!