stefan,
the quest of learning continues endlessly in nihonto as our learned friends have said....enjoy your blade for what it is as and learn as much as you can from it then move on towards your next piece knowing that you will be better prepared....my first piece was an old kamakura wakizashi with thrown together koshirae which i thought was the dogs danglies, admittedly i only paid £100 for back in 1981 and sold a few years back in the same guise but 15x its price....so every cloud as a silver lining but knowledge is the deciding factor.
guildo and ted and many others on this forum have spent many years of hard work studying and learning to finally achieve where they are today and they advice is paramount,
so next time you are in a position to purchase another blade ask for their advice it costs nothing but the answer you will receive is invaluable.