@Nikita-mikaelson there have been some great resources listed.
I have found a lot of helpful information about being highly sensitive/empathic from Luna & Sol at:
They have quizzes with corresponding further reading, books, workbooks, all kinds of information from start to throughout your journey.
I am an empath (extreme sometimes) & I will find the other resources I have about it on my laptop this morning after I drop off my daughter. I would definitely start with at least 1 of the quizzes on the website I linked. The results link to articles by them about the type or findings of the quizzes.
One of my favorite spells to protect my energy & that I have made up to put in my daughter’s backpack is: Protection from Draining Energies by @SilverBear