Changing font and adding page titles to header

Can anyone help mee im trying to finalize my site and add page titles to the header of my page, been trying everything but nothing works.

Also ive been trying to change my font to marketing script i installed the ttfiles plugin and added the font i just cant get it to show on my sidebar titles or my blog title. Wouldd love and greatly appreciate some help if anyone kinows what to do, my blog is celebrityshoestatus.com if u need codes let me know.