Take your phone to TAG and have them install an app lock. They will have the password making it impossible to open any app that you don’t want (including the play store so you can’t download new apps.) This option doesn’t delete the other apps from the phone but makes it impossible to use them without entering a password.
Another option is to have a parent or friend create the password. This isn’t as fool proof as having TAG do it but is definitely better than nothing.
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