How do i access an existing gmail account from this device?

What options do you have, once you realize that your Gmail account has been hacked? This, of course, is an unfortunate incident and there is nothing much you can do, other than trying to recover it.
Gmail Account Recovery When You Can Still Access

If you can log in to your Gmail account, this at least is a bit of good news. Since you have noticed some unusual behavior, it makes sense to take some adequate protective measures. On that front, you can do the following:

• Start by changing the existing password.
• Check if there is any change to your recovery options.
• Enable security alerts for better safety.

In addition to these, you must also make it a point to inform your friends or family that your account had been hacked. Ask them to stay away from any suspicious emails that are directed from your email address.

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1. Go to www.gmail.com
2. Click on the "Create an account" button
3. Fill out the forms, follow the rules for username and Password
4. Complete your account creation.
5. You will then have a Gmail account AND a Google account.
6. Once you are logged into your Gmail, you will have access to all of the Google Account features
7. Look for the 9 square-dots icon near the upper right corner of your Gmail page, clicking on that will give you access to other features, such as Google Drive. Calendar, Photos, etc.

I hope this is the help you need for your account

how to video above.

You can go to Google mail through the browser and access it that way or use gmail app and log in.
https://mail.google.com/

It sounds like your gmail is defaulting to one that you don't want, and you want it to default to a different one. When you go to gmail, it automatically takes you to the last gmail account that you logged onto.
To get to your preferred gmail account, you have to sign out of the one you don't want. To sign out,

1. When you are in gmail, click on the icon in the top right corner (your "account" icon).
2. Click on "Sign Out".
3. On the "Sign Out" page, click on "Sign in with a different account".
4. Here you should be able to access the gmail account you prefer.

Hope this helps.
John

Point your web browser at http://www.gmail.com and log in. It doesn't matter what computer you use to access Gmail, it's still the same account.

I'm assuming that you don't already have an email account, since you seem unfamiliar with how to access it.
Therefore, I recommend starting with a free gmail account from Google. To sign-up for a free account:

1. Click on this link: http://tiny.cc/t4dwk
2. Fill out the brief form
3. Click on the "I accept. Create my account." button

Once your account is set-up, you can click on the Compose Mail button to write and send an email message.
If you have an existing email account that you're trying to access, please tell us your email address, so that we can help you get to the appropriate log-in page.