Well, you just said nursing was too demanding. Is Psychology not demanding?

Basically, Psychology has its own set of difficulties. It can also be demanding in stress. Like, critiquing research journals, case study analyzes and some projects. Since, Psychology is a research-based science, its difficulties is mostly based on statistics. It is not as stressful as nursing, though. Still, both requires critical thinking skills.

The subjects would only be enjoyable, fascinating, motivational if the professors are great, otherwise, pessimism dominates the lives of the students with many resources wasted. The problem here lies in the sequence of subjects. I will set an example:

If you weren't taught well in General Psychology, the students will have difficulty in understanding the succeeding major subjects in Psych and the danger is, the students will get lost, unless they have the motivational effort to self-study.

Give me your best shot! :)