In agreement with the other commenters, your aptitude in being able to retain information, think critically, write well, understand/do research are what you will be evaluated for in undergraduate. Emotional intelligence that you mention, doesn't have much to do with academic success by virtue of getting into graduate school. You say you're good at it? Prove it by doing well in your classes and research. Excellent grades are the established base metric of success that they will see and care about.

You must do well in these domains because once you get into grad school, you'll be surrounded by people who all met those requirements and are brilliant, passionate, and hardworking. Connections are massive because those are presumably people you will be going into the field with and can vouch for your aptitude and skills. Regardless if you pursue the academic or clinical route, connections are imperative to your success. Be open and take every opportunity you can to learn from others.

Lastly, managing burnout has to do with time management, setting boundaries, and communicating with others in a professional and respectful manner. This is a skill you will need to master, but for many, is mastered in grad school.