Continue to push your resource fields up, and all empty places in your city except for one (rally point will go there) should be filled by lvl 4 barracks (to produce archers). The main concern you should focus on is making ATS (archer towers) making archers, and upping your walls/resource fields/barracks..... After that, make sure to upgrade informatics and your beacon tower so you will be able to gauge incoming attacks. Also, it would not be bad to make scout in about an even ratio to archers so it will make it harder for the enemy to scout you.
The best way to learn is trial and error, hell I am still learning and have been playing since about June.
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