Feeling lonely

I (22f) broke up with my partner (34m) a few days ago. We met when I was 14 and he was 26 (sick I know). But that’s beside the point. He always cared for me financially and somewhat emotionally and I always felt like I had someone by my side. We have a young daughter together. Now that it’s over I feel really lost. I feel so alone. How do people cope with that feeling? I’m alone financially and emotionally. I don’t have anyone who I could speak with about my feelings. I just want to hear some advice how to get rid of this feeling and be okay with being alone and not cared for by someone. :(