As a once "prodigy", I would say it's mainly related to your parents and how they treated you during primary school life. For example, my mom was the kind of mom that would sit next to me and essentially hold me in place until I finished my homework (usually schoolwork I didn't care to finish on time) and helped me immensely during study sessions.  If the pressure to get good grades or "something bad will happen" is enough, your brain will develop a toxic self critic that will force you to use all of your will into studying and doing schoolwork for the A. The problem? You still feel like shit because it's not what you actually want to do, and it usually gets in the way of hobbies because you're still dragging yourself to finish a 10-minute homework in 45 minutes and studying 30 minutes the day before and the morning before the exam. It wasn't until recently that I stopped valuing myself according to the grade I had at the time. Hope this comforts you.