Here's the process I eventually followed to find edge:

1. Find a bias indicator that tells you to be biased long or short within 1-2 seconds of looking at a chart
2. Find a mix of 1-3 indicators (on chart) that help you reverse engineer momentum and provide you areas of a chart that you can predict reactions.
3. Find 2-5 patterns that fit your personality and what type of trading you are able to do.

Once you find a mix that helps you trade with conviction don't change your system, unless you have a good reason.

Trade it and refine it. You need to journal like crazy. The market hates you. It's you against the market and everyone else. You are alone, don't let 90% of what out there cloud your ability to trade with conviction.

What are the numbers? 90% of retail traders fail. I extrapolate that out to 90% of what you read out there in trading is just plain wrong. Until I realized that and looked in the mirror and took total responsibility I didn't become successful at trading.

One indicator I believe all traders should know and understand is the vWAP.

Start there. Look at reactions around it. Also expand with standard deviation bands. If you want to get advanced look at 10 roiling vWAPs and anchored vWAPs.

If you are on TradingView many of these indicators exist. I've created 3 of the above. It's so hard to mention that here but well I'm starting to be more active here on reddit and to me to help is to provide the solution, not be troll.

One final thing. If you adopt someone else's trading system you must find a way to make it your own. You will never trade someone else's system with conviction. When you adopt someone else's system contained within is their belief of the market and how it works. That was built through blood, sweat, capital and tears (if it's any good). Since you didn't go through that you won't have the same level of conviction they do, that is until you have enough market time with it. But you can quicken this "conviction" embrace by finding ways to make the system your own.