Chagga Economy in general

The Chagga subsist primarily by agriculture, using irrigation on terraced fields and oxen manure. Although bananas are our staple food, we also cultivate various crops including yams, beans, and maize. In agricultural exports, we (Chagga) are best known for our Arabica coffee, which is exported to American and European markets, resulting in coffee being a primary cash crop.

Now the question is - What should we do now to better our economy?