hi. For long term business planning you first need to analyze your resources completely. Second thing is kill you greed and the foremost is promoting.
So if you invest for example $10 in a business (i know 10 is very small but just example) and after a week you get $14 out of it, then instead of activating your greed, put the extra $4 again in business along with $10, so this time you invest $14 and next week you get $20 out of it, Keep investing till you reach a profit of many zeros. That is the life of a long lasting business