Here's a different take on things!

Congrats on reaching the point that you will get to step back and enjoy life.

As far as finding affiliates to promote your store, I think you will have to work on relationships with others that are an easy fit. You need to find people who promote your store because it makes sense and will see the commission as a small bonus. The reason I say that is because from a quick glance, it looks like you have lower priced items and amazon pays a low commission. As a former affiliate marketer, I always considered the amount of work it would take to promote a product vs the commission potential to decide who I would promote (ex. Lower priced ebook paying 75% was fine, high priced set of tires paying 5% is fine, but low priced ebook paying 5% was a no go).