Steps

1. Find five completely random blogs, and read them daily for a month. After thirty days, you will absolutely dread your self-imposed requirement to read all that dreck. Any blog you create will most likely be on par with what you've been reading. Don't put anyone through that.
2. Consider that your voice, even if it is truly a good one, is a tiny peep against the massive wave of tripe out there. The odds of anyone you don't already know finding your blog are low.
3. Write on a regular basis in a text editor instead. If that doesn't satisfy your urge, and you feel that you must post your blog online, then you might just be craving attention and validation--which you'll never truly find in a blog. If you give up on your Wordpad journal after about three days, you'll do the same with a blog that just takes up server space.
4. Ask yourself if you really have the time to commit to a blog. What about that treehouse you wanted to build? Or the book you wanted to write? Or the car you wanted to fix up? Or the restaurant you wanted to take your significant other to? Or the new career you wanted to pursue? Instead of writing about pretty much nothing, or whining about all the things you wish you were doing instead, start doing something that'd actually be worth writing about. And if it's really worth writing about, you'll be having too much fun doing it to tear yourself away from it.
   

Tips

• Rest easy in the knowledge that it's perfectly okay and respectable to not have a blog at all.
• If attention and validation are what you're looking for, know that you will get neither from blogging. As above, very few people will ever know that your blog (or you, by proxy) exists. The remainder of comments posted to your blog will be sappy treacle, which you won't trust as being sincere anyway.
• Consider writing on a wiki instead. Unlike most blogs, wikis like Wikipedia and wikiHow are read by millions of people each month. Several wikiHow authors receive "fan mail" messages every day from appreciative readers. In addition, many authors discover that they enjoy the wiki collaborative writing process more than writing in solitude.
• If you plan to use a blog as a way of keeping in touch with a group of people, such as friends, family, or co-workers, then you may want to make sure it's inaccessible to the public (for the public's sake as well as yours). Using a message board instead of a blog can simplify matters and help keep it interactive.