It might be worth @newekemini5 realising that these things work both ways.

Whilst he was able to access your saved Steemit keys, he will have assumed that you wouldn't know how to access all of the passwords that he has saved to your account.

You now understand the power of your Google Password and what it can unlock

Join the dots @newekemini5 - reread your mother's post and understand the message within my words. To remove the subtlety - You assumed that your mother wouldn't be able to access your saved passwords.

You might want to phone your mum now and apologise for the damage and distress you've caused her.