Second Blog, same WP

Okay, this might be confusing, perhaps not.

I have WP installed and doing very well, thank you. I have a few plugin’s installed and working fine, so I do understand WP somewhat.

I have searched for an answer to this but cannot find it so I pose the question here.

I want to add a second blog to this instance of WP. I would live to have it added such as a page, in the page menu and be able to add to it as I add to the original blog.

I understand I can make a new page and input my content there and using breaks, etc, etc, can make it appear bloglike, but it would not be the same.

I am looking to document some things which will be going on in my life soon without putting them on the main blog page.

Help ??