My dumbest stupidest most idiotic recent thing was when my phone software was upgraded it didn't work and I lost the ability to access all the things I'd saved on my phone, like photos, contact info etc so I deleted the software on my computer thinking I could just download it again. It didn't work and there appears to be no way to fix it.

I'm hoping that when I bite the bullet and buy a new phone I can put the Sim card in that and the data will be transferred to the new phone. Maybe. If not, bye-bye to all my data!