Why You Should NOT Try Easy from a perspective of a postgrad

I am a computational neuroscience master student with a psychology background and I want to tell you that choosing something tricky took me to a place that I want.

I know that after 4 or 3 years of all studying about one topic, you get confident about some content and want to go along with it. I knew that I wanted to study something about cognitive psychology and neuroscience in my postgraduate from the beginning of my bachelor's degree. I have applied to those I won't lie. However, now I am in a course with a bunch of physics and math that I am not familiar with and believe I thought that I was not good enough for a long time.

After a point, it was only disappointing and in a way self-destructive because I started to think that I was a failure most of the time. It was devastating and then I realized that I did not put my full effort into it but expected the best. I expect it to be like bachelors, you know, go to class, work a little, get a good grade… I used to think that this is me for 4 years and then I found out that I need to put much more effort into that. I always loved statistics and math but I was not prepared for that advanced level, speaking truthfully, I have never thought that I would see that much of them.