Violet Flame

How can I easily import all 160 onenote notebooks? (i.e. entire account)

Hi! I was previously a EV customer -- and my "free level" old notebooks are still there -- when I logged in just now after a few years. In the mean time, I switched to OneNote -- but am totally dissatisfied with how impossible OneNote is to sync across multiple devices. So . . . would like to return to Evernote QUESTION: How to delete all 169 old EV notebooks (so I can start "fresh") then import around 180 One Note notebooks? I have arthritist, so absolutely don't want a solution involving MUTLIPLE clicks to do this. Maybe close old account - - - create NEW account . . . . then (if possible) how to import from Onenote? Thanks!