Serious question, do I just plain suck?

[Rob Easy]

Me and my friends play a home game tournament every 3 days or so. NLHE tournament winner takes all. Buyin is usually 5 dollars. Now I remember when we first started playing, I would consistantly get to the final 2. I'm the most knowledgable person at the table, I've read HOH and another book by a couple pros and I read stuff online, but I haven't won in over a month. Everyone there sucks balls, but seeing as I can never win, doesn't that mean I suck too? Well actually I know the answer to that question, but I'm hoping somebody will tell me something that will give me an excuse for losing.