Here's a concept:
If you're like me, that is; a compulsive nerd, you'll go into kinowear.com, and read the entire blog. From post 1 to whatever it is today.
It's not been very active for a while, so you'll catch up eventually.
Follow the tips and life-hacks that is posted in there and spend somewhere like 10-15 minutes each day just looking at fashion/clothing.
Consider stuff like the Satorialist;
http://www.thesartorialist.blogspot.com/
And get the input going.
That will, most likely, help you develop a sense of fashion and style, which again will translate into you buying clothes and finding your own style.
Also; don't be afraid to express your style.
Find what you're comfortable with, which also looks good (Don't be afraid to look good. ever.) and wear it.
Like all art/expression, it gets better the more time you dedicate to focus on the field.
So, get started on the input, and start tracking ideas about what sort of style you like. What constitutes a really Good-Looking outfit on others that are built like you.