Struggling to define my 'edge' in CFD trading

Been trading CFDs for a few months now, mostly on forex pairs like $EURUSD and $GBPUSD, and a bit on commodities. I'm through the initial 'everything works' phase and now finding it much harder. I've read a lot about needing an 'edge' and understanding your strategy inside out, but I'm honestly struggling to identify what mine even is. I feel like I'm just reacting to price action rather than executing a well-defined plan. For those of you who've been doing this successfully for a while, how did you pinpoint your own edge? Was it a specific indicator setup, a particular market condition you exploit, or something else entirely? Any advice on how to actually find and quantify this for myself would be greatly appreciated.