Probably the biggest problem with your blog is that you only have one post and haven’t had that many visitors to it according to site meter. Your ad placement is ok, but you don’t want your right hand navigation to be filled with ads and mostly ads. You can mix them into your copy and you can also create an astore on your blog if you move it onto your own url. This could be better for your blog in general. Here are the first few things I would recommend.

1. Buy a url.
2. Install wordpress.
3. Post at least once a week with a new workout routine for your clients and readers.
4. It’s great that you have a newsletter, but you may want to use it to mail out a new workout routine each week or a daily exercise to do and also include a banner or link to your astore.
5. Create an astore and recommend your clients only shop for their supplies through it. (Astores are Amazon Affiliate Stores and are very easy to do).
6. You might also want to try to diversify your merchants from the one Affiliate program you are promoting in addition to Amazon. Sometimes people just don’t like a particular merchant or their sales funnel isn’t that good. Test out a few and give a variety. You also want backup merchants in case something would happen to your relationship with the main one.

That should keep you busy until you are ready to start testing colors, positions, etc…