In general if you want to be a good writer, you need to be a good reader first :)
Writing is a good ability you could have so you would be a more valuable person, and also create value. Also writing is a way to express yourself, like in your blog.
Like many other things, you get good by practice. If you enjoy doing it, then just go read and write. Ask for feedback. You'll get better and better slowly :)
Also may the Source be with you :D