google banned over 50+ youtube accounts

Today google banned over 50+ my youtube accounts. Them were about one year, I registrated them from smartphone (10 accs a day, new SIM for every 2 acc) and then upload some videos from PC, some time later I prepared them - upload 10-15 videos in a day, but didn't share. Some channels were working with shared videos and optimized... Can I recover them?

How to create google accs and youtube channels that they will not ban in future? I so tired...

Did you use different proxies or vpn for each account? Maybe that's the problem?