I have a fairly similar problem.
There is someone at my work that for some reason treats me differently than the others. It's like, when there's an issue and she doesn't know the answer to something she just decides to wait until someone else is free rather than ask me.
She seems to find it very satisfying when I make mistakes and she swoops in and saves the day last minute, rather than help me resolve the issue correctly.
I get frozen out a lot at work due to being the youngest. No one really speaks to me or takes me very seriously.
I'd suggest to keep your head up and don't let them see that they affect you in a bad way. It may be that they are shy around you? Who knows, but at the end of the day you get to leave work behind and go home.
Sending love and support. x