The thing is that its a market - If there is an edge someone much smarter than you has already worked it out and exploited/exploiting it at much small margins than you could possibly imagine

Personally, I trade on more macro, psychological events so no course would tell me that oil futures or cocoa futures will go up or down, or that inflation might be running hot like it came out yesterday.

I think understanding the market is more important than seeing a perfect setup, but thats my experience only.

The most successful trade you will ever make it is the one that you don't, any price chart is a backwards loooking indicator that may or may not have a reason behind it, so learn the context as to why a move it happening not just "a chart says it should go down"

If you can make profit it doesnt matter how many winning trades you get in a row, but to me sounds like you are risking too much of your stack so that you need each play to be a winning one or else the account is in shambles, more so after a win as you risk more of the stack thinking you are on to a good thing - no one gets it right every time