How do I stop wasting my life away?

I’m a highschooler but all my days are blending together and it’s suffocating me. I spend hours on my phone on end. Without it, I don’t know what to do with myself. I want to talk to people but I just don’t know where or how. I don’t know how to break this cycle and I don’t want my life to pass me by. I know it’s silly to be thinking this as a teenager but if i dont break this now, I’m scared this will spread and I will end up completing nothing in my life. How do I find the joy in living and how can I make every day different. Please help