Missing characters

I recently got a new computer, but when I reinstalled BL3 it seems that all my character and everything is missing. I no longer have my old computer, is there any way that I can get my characters back?
-I forgot to mention that I’m playing on Epic-

If you’re on Steam, I believe you should be able check what cloud saves are available. Not sure about Epic. Either way, you’d want to try and force a sync from cloud to local before starting any new characters. If cloud sync for your platform wasn’t enabled on your old computer, though, you’d be out of luck.