Re: my phone won't pass the start as new setup
Since we don't know what kind of phone you have, turn off the phone and if you can do a battery pull. If you cannot pull the battery, there are ways to simulate a battery pull which usually involve the power button and the volume button. You'll have to look up your phone and simulated battery pull for the exact directions. After the battery pull I would attempt another factory reset just to start things off fresh, and it shouldn't hurt anything since you've already done at least one.
You've already chosen to wipe data but I would also choose not to restore apps. Since it was acting buggy before the reset it was likely an app that was causing your issues, so by choosing to "not" restore apps you should be cutting that bad app out.
I'm not sure if you can do a set-up from safe mode but if this fails that would be my next step. Try starting the phone in safe mode and going through the set-up. Again you'll have to look up how to enter safe mode specific to your phone model.
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