This is advice to Potter-Gryffindor
They commented (twice I didn't understand the first one and had to ask them to rephrase it. I'm going to use the one I understand)
Maybe you could complement them a lot.
There's some songs I know that help with self esteem you could have them listen to.
1 song is Gold by Britt Nicole
Another is The Climb by Miley Cyrus
There's a lot of other songs if you want her to tell you anymore.
You could show how much you and others care about them.