I'm about in the same situation like you. Been in forex since 2014, and slowly beginning to understand how stuff works.
I have been watching those youtube videos, too, and most of them are simply boring or off-topic regarding to my style.
I favor using lower time frames for entries, and exits, and higher for directions.
Once you have figured out your S&R levels I would use full stochastic oscillator (5,3,3,) like in MT. In the lower time frame I would use in/out 10 period SMA, or crossover of 10 & 20 period SMA.
I like fiddling with Bollinger Bands, SMA's, and full stochastic. Sometime MACD.
The only difference between me and you is that the highest time frame I look for S&R is the daily time frame.
Even if somebody reveals precisely a solid money making strategy there is a huge psychological aspect, with which I'm tackling, too.
I don't use ADX or RSI, since I feel that they are not very precise for my purpose.
Had I have a mentor or a coach, this journey would have been much faster.
I'm still dreaming of making big money out of 'pocket money', so I don't really know.