My trading method is based a solid foundation (balanced risk and sound cash management) and a mix of fundamental analysis and observing price action.
I use a few crude chart indiors: your useful fashion line, the reliable support and resistance line, an SMA 50, and fib retracements. I do not rely on those indiors to make me some cash. They do assist me loe where price is very likely to bounce, bob, flip, flip, and perform all kinds of unexpected exciting things!
At this time I risk 1 percent on near term trades (couple weeks to a month), and I will risk more if the reward justifies it, but not greater than 2%.