How do I make friends as a floater?

I usually lurk reddit, hence the empty account, but I really want to make friends. I am a senior in high school, moving to an alternative school soon because I'm missing a lot of credits. All my life I've been what I think is called a floater friend, I'm the person everyone goes to if they don't have anyone else to talk to at that moment, and most conversations are either me giving advice or listening to them talk about something they're doing that day. I've tried everything I could to get closer with people, like planning hangouts, playing games together, so on so forth, but no matter what I'm usually the one starting the conversation, and if I don't start any conversation in a day it's usually radio silent besides maybe one or two texts asking for help. The deepest friendships I have right now are all online, and they're pretty quiet nowadays due to school. I really want to make new friends when I go into this new school, and I don't want to be a floater there too. What can I do to make friends?