1) Blog Theme: You are going to personalize your blog. Each Theme offers differenty customization options. From your Dashboard on the left, go to Appearance -> Themes, located on the left hand side of the screen. Choose a theme that is mobile friendly, and apply it. 

Click here for more detailed information how to customize your blog’s Appearance and Theme.

2) Blog Appearance: You are going to personalize the appearance of your blog. From your Dashboard on the left, go to Appearance -> Customize.

a) Site Identity – This is where you can edit the title of your blog. Please choose an appropriate title, that does not have both your first and last name in it. You can also edit your tagline. Your tagline is a very short sentence that gives the viewer a snapshot

b) Colors – Edit the color scheme of your blog.

c) Header Image – This is where you can add and change the picture that is being used in your header.

d) Background Image – This is where you can adjust your background image.

e) Menus – You can create multiple menu structures. For simplicity, lets stick to 1. Make sure you select Menu Location -> Primary Menu -> About Me. Then click Save. This will ensure your menu stays the same, even after adjusting the theme.

f) Widgets – Locate and see all the widgets on your blog. Widgets are like single-function apps that run on your website like a twitter feed, blog archive, and so on.

g) Static Front Page – Front Home Page Display is set to -> Static Page and Front Page is set to -> About Me.

When you are done customizing your page, feel free to remove this page.