If you get excited with your images, there are almost certainly other people who would feel as you do. Of course you may not have met them yet!
I treat Attention Deficit Disorder and use Ritalin and Dexedrine. They are both stimulant medications, far more alike in their effect and side effects than they are different, yet the individual response can be dramatically different. One person can find one useless and the other great, while the next person finds the exact opposite. I don't have a good explanation for this other than to say that everybody's different, and some of you (us?)are more different.
So it is with images. One person will really get your images while another person is left completely cold by them, so much so they can be quite rude about the quality of your images. If you don't believe me check out some of the comments on my book at amazon.com.
It can certainly be frustrating when you receive such negative comments about your work but if we can please some of the people some of the time, well, we're doing pretty well.
If you have not found an appreciative audience yet (mum doesn't count), then it doesn't mean you have to give up what you are doing, but perhaps you do need to fine tune your seeing, selecting and editing, without dropping your subject or your style. Maybe you just need to shoot more and be pickier. Lots of photographers have overly high expectations of their success rate and perhaps should be happy to get one or two really nice images a year, or go out shooting a lot more often.