Can't bed in my hydraulic brake pads
There is a good chance that mix of soaps is leaving a residue on the rotors and that is collecting on the pads and fouling them. If that soap residue is your problem, then it's also possible that the heat from use is helping performance, but it's not burning the soap away completely.
Whenever you're having a problem with brake power or excessive noise, the first troubleshooting step should always be to remove the wheel and the pads, clean the rotor and pads with brake cleaner or alcohol, and to then sand the pads with a fine sand paper just enough to take the very surface off. Don't sand the rotor (ever).
If that doesn't fix your problem, the pads might be fouled and contaminated by some kind of gunk, or an oil from chain or bleeding could have soaked into them. Sometimes this can be fixed by boiling out the contaminant with a small torch, then sanding the surface again, but most of the time, new pads are needed.
Bedding: the process of &quot;bedding in&quot; your brakes really only applies to when the pads and the rotor don't know each other, so to speak. New pads, new rotor, new both, the surfaces aren't worn into each other to make the maximum contact surface. What happens in bedding, is the differences in surface between the two wear in and become a match to each other. Washing your bike doesn't un-bed them. Removing your pads and re-installing the same ones doesn't un-bed them. Removing the pads and sanding them does un-bed them. I wouldn't worry about there being some complicated process to bedding, it's just a matter of knowing that for the first bit of your ride, the pads are wearing in to fit your rotor and the power comes up a little more with every use of the brake. You can do that in a parking lot or a special hill if you like. I just hit the trail and take it easy for the first half hour or so, or until I like how the brakes are working.
So go through those steps to try to revive the pads and clean the rotors, then maybe change up your cleaning process. If you like that mix of soap, be sure to rinse that soap off fully from the brake calipers and rotors. I personally recommend straight water if you want to use the hose. I clean with Windex or Simple Green and a rag and I only spray alcohol on rotors.