Trite but true, the most significant way to improve one's blogging is to write, write, write! Write unabashedly, uninhibitedly, and without self-censorship about any topic you so desire. Writing without ceasing for long periods of time opens up your literary channels and sharpens your focus...not unlike what jogging does for you physiologically, psychologically, and spiritually.
And then try some "outside of the box" strategies...go for a long walk where you can be all by yourself. As you walk, talk out loud to yourself...or talk to God. Say whatever you want to say. Shout out at the top of your lungs short phrases like, "I'm Free!" or "I'm a Terrific Writer!" It's my belief that by engaging in this primal screaming, we actually do unblock whatever it is that's holding us back. If you live somewhere where you simply cannot get away, scream into your pillow. It will be exhilarating and liberating at the same time. The cognitive reasoning behind this is that you are what you say you are. Words are powerful. Utilize power in declaring your words by shouting/screaming those words. By doing so, you unleash he powerful creativity that lies dormant within you. When a volcano erupts, it does so with a big bang. When God created the universe, He didn't do so with a whimper...He, too, employed a BIG BANG. Creativity demands such a big bang.
Talking to yourself (I know, it sounds nuts, but believe me, it works) enables you to unscramble and decipher all the rubbish noise you hear on a daily basis until the one true voice you finally hear is your own. Become good friends with your personal voice...that is the voice you will powerfully convey to your readers.
Above all, believe in yourself. God didn't create rubbish out of His personal treasure. No, He created the diamond that is you out of the garbage heap. So who are you to down yourself?
(end of Part I)