Hello wandalynn & welcome to MR.
Glad you stopped lurking and stepped in.
The buying-book-phase will eventually slow down. I have done the same when I first got my reader. Now I am more selective - still trying to catch up with the ones I bought. But I still saved money: the eBooks were all cheaper than any pBook I could have bought.
Have you looked at Calibre
for organising your eBooks? I use it , it's easy and with all the tags / collections you can create really great.