Building
Do not build more of anything than you need. It is tempting to throw down several vacant lots, roads and fields in the early stages, but this is a surefire route to failure.
Combos
Combos are the key to quick progress. Try to fulfil as many of these as you can, within the resources that you have, and your domain will be growing in a jiffy.
Craft element
The Craft element is perhaps the most complicated and difficult to grasp. No harm in developing new products for sale, but bear in mind that spending effort on crafts will impact on your ability to research new buildings.
Research
Research everything that you can for new buildings, even the ones that do not appear to offer any value. Some minor and seemingly worthless structures are often gateways for bigger and better structures.