Write your own script for automation rather than depending on someone else system, I have been making loses before I created my system because emotional part plays a big role in trading, even after creating my system i made loses initially because I was not taking trades as per the system signals, It took time for me to trust my own system,
when you are trading someone else system and you make few losing trades you are not going to use that system.
Better give some time to learning programming your self.
Position sizing will be next step after you have a good system.