How to make my program work constantly with setting accounts and sending orders?

Here I added the whole program 
that parses kind of forum and copies orders. So I want to put it in an infinite loop but it doesn't work correctly. As I understood, reactor is kind of processor that handles thw whole code in it after it was processed as background maybe idk.... Anyway I want to know how to make my program start once and work for all time. I also thought about starting the reactor and the whole api after a new trade was found, but then the reactor must be stopped and started again if there is a new trade, but it isn't restartable.