Different levels?

Hi 

I’m confused by these levels, I’m assuming they are relatively new…

I guess generally I’m a level 1 but I feel like I cross the line into level 2 but I’m so confused Sweat smile I heavily mask but people still notice that I have differences to what is considered “normal” 

im moving into to own home for the first time where I’ll be living on my own (which I’ve never done before so I am so so nervous but I am excited too) I guess ill see what level  fit into when I move? 

does anything really define the levels or do you only fit into one?