The speaker lists the things other people noticed and how those people reacted. Crying gets "suck it up." Pulling away gets an accusation that they no longer love their family. Sleeping late gets called laziness. Each time, someone sees a symptom and judges it, without asking what's causing it.
The second half turns to what went unseen: a fading smile, lost happiness, hair falling out, scars on an arm. Judging by these details, the speaker is dealing with serious depression and possibly self-harm, and has been hiding it. The last line, "your right it might just be my phone," is bitterly sarcastic. The speaker seems to be agreeing with the family's likely excuse, that they're only absorbed in a screen, while making clear how much that explanation misses.
The mood is quiet, hurt, and lonely. The short, plain lines feel flat and tired, as though the speaker has stopped expecting to be understood.