Which is the best way to find good edges?

Hi, ive tried many approaches

Different markets

Manual backtesting and automated approaches

But most strategies or way i trade are literally ending up in a 1.25 profit factor and the growth is extremely slow

Ive also coded many strategies

Im not talking about indicators but combining good concepts of individuals + logic + timing

Asymmetrick type of entries in line with structure tend to truly give an edge but it tend to still be a "small" alpha

It performs good on many markets multi tf both backtesting forward and live

How one finds truly exceptional stuff that has a greater bigger edge

1.5 -2 profit factor range

Also when i trade manually there is not much difference , the slow is really growth, by risking more aggressivly you make more but i dont think is the ideal approach

My usual process is to check for example most recent 7 days and study what happens on moments with highest volumes

What type of schematic happens , classify them , save them and both backtest manual + build algo around it

But no matter what ive tried since years it seems really hard to truly find edges that tend to truly give high profit factor

One of best ones usually rely to being able to enter on right timing on 1min and aiming really high risk reward , 3-4 diff objective variation for entries

I dont really understand how one can shifts from small alphas to truly great ones

Is like they already exploited the obvious majority of plays or ways to trade , obvious mid and low levels