Hi +Columbia Alta Cocina
Based on your other question, I recommend you get assistance from the Google and Your Business help forum sorting out your extra Google+ Local Pages.
Your main Google account will always sign in to your personal Google+ Profile (or, if you delete it, bring you to the Google+ Pages dashboard). However, if you are mostly a YouTuber, you can set your channel to be the default for your YouTube account (www.youtube.com/account_advanced
), you can go from your channel to Google+ and you will be using your Google+ Page identity.
If you only want to act as your Google+ Page, you would have to set a new password and use the Page's special @pages.plusgoogle.com
username to sign in to the Page directly. Here is how you set a password for your Page: https://support.google.com/business/answer/4570250