just remember that making consistent profit does not depend on using a script with a bot, it most of all depends on your ability to speculate the direction of the market and place appropriate orders that are not in the opposite direction of where the market is going towards.
it may not look like it as we currently are in a stable phase where price is going up and down within a fixed channel but it will eventually exit it and that can easily wipe out all these tiny profits that you accumulated over days or weeks in one go.