One small step at a time Phil. We all get carried away at times. I would have only cropped an image about 3-4 times in 35 years, so I'm not a cropper (Is that a word

). Plenty of people say crop this, crop that, etc. Its just a habit of not cropping outside the box. I don't have a problem with anyones image that has been cropped I must say, just a personal preference I guess.
I would suggest you try different lenses, reversed, stacked, tubes, etc and just enjoy shooting macro. Don't worry about ratio so much. Only IMO.
All the best Phil, keep shooting and posting mate.
Danny.
Worry about the image that comes out of the box, rather than the box itself.