There's no purpose or why we are here.
The purpose in life is finding purpose for ourselves, most people have different goals.
The problem is that with capitalism, there's only one true goal that's valued for the majority, and that's making money and being successful.
So if you're a person who doesn't have that goal, you just feel kinda alien.
Because if you focus on doing just that, without caring too much about it, you feel empty.
And if you don't focus on it at all, you "fail" on the eyes of many, and you might feel ashamed or behind when comparing yourself to others, which is something quite impossible to avoid with the internet and the common use of it.