As your site look like a personal diary, you can try some free diary theme out there. Here is one: http://www.bloggerblogtemplates.com/2008/12/blogger-notes-blogspot-skin.html
I would suggest, you type in google "free blogger templates" or "blogger templates" I prefer using wordpress, so I advise you to switch cause you can do more with wordpress.
I have blog in blogspot too. You can search it there for their free template. You have a lot of templates to choice and some are related to your blog.