What if you don't have any talents. (Or at least havn't discovered it yet) I seem to be quite mediocre at everything.
Also, do you have things that you are really interested in, or enjoy doing? I think sometimes the basis for what people call "talent", is really just that some people happen to really like a thing, and then spend a lot of time doing it. )There is obviously also the flip side of this, which is people often prefer doing things they are naturally good at.)
As a final thing, if you really don't have any particular talents, who cares? You are no less valuable a human because of this.
The people around you, the job, the inventives, your health (ADHD), the bad habbits.
There's always a chance.