I feel so unimportant to others

I feel so unimportant to others

I feel like people don’t really care about me and I’m unimportant to them. I feel like a background character in everybody’s life. Even though When I hang out with people, I try so hard to be funny and fun, nice and easygoing…..but I don’t feel like a try hard and I don’t force it either. But I feel like people have a good time around me. But despite that, when we’re not together, it’s like I don’t exist. I hate it so much. I feel like everybody would be perfectly happy to never ever see me again.