my genealogy and DNA...

I have been researching my genealogy for about 3-4 yrs now. I still consider myself to be a beginner although I have much information on my family, I have so much more to do. I really enjoy it all but sometimes I do not have as much time for it as I would like. I had my DNA done with FamilyTree DNA and was so pleased to find out my history but also found out that I have a rare DNA because I do not have any matches with mine. FTdna even changed my halogroup a few months after having mine done. I really dont understand the whole DNA thing...but I started out as being a U5ala and am now a U5 but upon reading some material about it all, I really should be a U5a, but far be it for me to tell the experts about what Ive read and what I now think I know...its too funny! Well, my friends, Im off to rest my eyes and mind and get ready for another day of research...good night.
Jay'me