Did I waste my money in buying 4 Macro Lenses for my digital camera?

From looking at a picture of your camera it appears to use 58mm diameter filters. Since you forgot to tell us what brand of close-up filters you bought its impossible to comment on the quality or lack of. I've used B+W, Hoya and Tiffen filters for over 40 years and they are brands I recommend.

I say give it a go. If you don't like the results you can return them or simply chalk it all up to experience.

You actually can use diopters (which are called "close-up filters" or "macro filters") to add to the apparent magnification for macro work, that is what they are for.

What you need to know is that they change the focus distance, bringing you closer to the subject. It is possible when using diopters to get a focus point that would actually put the subject inside the lens... meaning their use is not unlimited. You will have to experiment to see how they work for you, but in general, they work well enough.