Try two-dimensional selection. E.g. instead of just a "stressed" slider, have a grid with X-axis of "workload" (low to high) and Y-axis of "pressure". Or "anxiety".

See here for an example: https://play.google.com/store/apps/details?id=com.ubhave.emo...

It's surprisingly intuitive, at least for the axes the devs of that app have chosen.