Don't sweat it, it's all part of the learning process. I joined this world in Sept/Oct, bought a bunch of coins that were at their ATH, and then everyone started selling off for the BTC fork, my coins all dropped and after 30 days I was sitting at a loss. Fast forward a couple months and all my coins grew like crazy over Nov-first week of Jan. Just hold, keep researching and don't sell anything at a loss.