I won't give you the exact details, but you want to
- Increase the number and quality of your housing.
- Join a guild and increase your friends list, motivated houses double coins and can't be plundered.
- Increase happiness to enthusiastic to get an additional 20% coins production.
- Select housing with production times that matches your schedule.
- Collect in a timely manner to avoid downtime and plundering.
In my first few months, I found myself using a spreadsheet to coordinate housing, happiness, supplies, goods, and military.