Installing CM 13 OTA causes so many app crashes that I can't do anything on my phone. Can I save my data? I had cyanogenmod 12 on my Samsung S4 mini phone, and I upgraded OTA to cyanogenmod 13. After the update Google play services was crashing all the time. I tried downloading and installing GApps through the recovery mode but it only made it worse. Now the crash pop ups are so many that I can't do anything on the phone anymore. "Unfortunately Setup Wizard has stopped" is the one that shows up the most. 

Is there any way to fix it without resetting everything? And if resetting is the only option, can I still save the data? 

Thank you for any help!
Try booting into recovery mode and enabling MTP, and then get your data from there.

What happened was that the Gapps were incompatible with your OS, since you were using Lollipop gapps on Marshmallow. Once you flashed Gapps, it was already too late, since they need to be flashed on first boot.

Once you have your data, factory reset and flash the packages in this order: CM -> Gapps -> Whatever else (SuperSU?). Make sure that they are flashed one after each other. Do NOT reboot until Gapps is flashed.