I need help, who's good at coding?

Ok, I am going mad.

Trying to make a blog with blogger thingy.

And coding it myself.  Very, very bad idea.  

I've already removed the nav bar thingy by accident, screwed up the comments coding (it looks fine until someone leaves a comment, and then it goes weird and out of alignment)


I really have no idea about coding, so I was just winging it using different tutorials and such.    

Can any of you help?

Here's the blog:
www.bexey.blogspot.com/