How do you create belonging?

I’ve felt for a long time that I don’t belong in my group of friends. I can feel my brain gathering evidence for it everywhere. This weekend we’re supposed to go away for a girls weekend and I find myself dreading it rather than looking forward to it. It’s like I’ve convinced myself that no one in the group likes me or wants me around, yet they still keep inviting me. I’m not sure if it’s out of obligation or if they really want me there. I think what it comes down to is my thoughts about myself. I’m just not sure I really like me.

I want to feel like I belong but my brain has so much evidence that this isn’t true. I want to create a sense of belonging that comes from me and isn’t dependent on how these people decide to show up. Any resources you could point me to or coaching on this topic would be wonderful!