Beginner table design

Question

I have been coding in C# for a couple of years where I usually try to follow the 'single responsibility principle' which states that each class should ideally be responsible for only 1 goal. Now I want to design a small database for my app users. My initial go at this is as follows:

I am not sure how the single responsibility principle applies to the database world. Should I split this table into 3 tables, one which holds only the Facebook ID, and another for all high score related fields (HighScore, AllTimeHighScore, ScoreDate, ...) and a 3rd for all medal fields, and maybe a 4th table for just the Expert Mode Score, or keep it as is? I know this is probably overkill, but I would like to know the basic principles regarding what can be grouped in a single table.

Note: I would like to take into consideration future proofing. If in the future I decide I want to add a 'platinum medal' field, would that change at all how I would want to design my above table now?