Why and How to be More Systematic

Systematic Trend Following: A Retail Trader's Guide

Sam from Manchester, UK sent us the following, we give our takes.
1. Why do you trade systematically over rules based discretionary?
2. Do you have a overall portfolio risk limit? Like 20% at any one day max. Or because you have so much diversification is all you capital in the market? Are you always long or short an instrument or do you sometimes go cash?
3. I’m interested to know the process of how to become systematic like what platform and skills are needed. Does it sit within your broker platform and take trades for you or does it just send a signal to your laptop when to buy or sell a particular asset.
I want to eventually because systematic as possible because think it’s better when scaling up and takes emotion and obviously any discretion out of trading.
https://youtu.be/A-M-iYyFwB8
https://www.youtube.com/playlist?list=PLiWGC9_PMsWPohL8S6ceoOn3WWoq__ZB3