I used to be so organised now I feel like everything is a mess and I don’t know where to start
Same! Washing them immediately OR in the morning while preparing my coffee helped me.
What helped me was thinking about the dishes as a cycle rather than a task. The dishes are never “done”, they’re just at a different place in the cycle (dirty, wet, dry, in the cupboard) and when I have the energy I just try to move things to the next part of the cycle. It made it less overwhelming to realise I don’t have to do it all in one go.