I did read a very good book on dreams, and scanned through a few questionable books as well. The iconic nature of dreams makes their psychological interpretation rather less than difficult. So it was with yours. The fact that you win in your dreams is a testament to a basically healthy individual psychologically.
Just by way of comparison, for the longest time I had dreams of driving a car that would end up going backwards into a ditch and getting stuck, or slide on ice, or get stuck in snow drifts. Cars are emblematic of the dreamer's personality. Those old dreams of mine were easily interpretable as me being stuck in life. Lately my dreams have had me driving over the speed limit.