Someone to talk to

I'm looking for someone willing to talk to a high schooler who probably needs more help than they are willing to admit. Topics would be depression, family, and school stress. I'll apologize to anyome beforehand because sometimes I really want to reach out to someone, and othertimes just want to shut down everything and go silent. Also, define depression and suicidal ideation for me because I have no idea what those labels mean.

Mainly, I'm worried about creating new connections with others because it feels manipulative and attention seeking from my part. I'm trying to keep any negativity away from others in real life but it's hard.