I was impulsive too but...I think it is an important thing to actually try a ton of watches to figure out what you really love. I know I have been surprised by some watches that I did not love when I checked them out at an AD...but loved them after wearing them for a few days or weeks. Sounds like you went through the same cycle.
The other mistake I made was selling watches I didn't wear after only ~4 - 8 weeks. I realized sometimes I want something like a Speedmaster and it's nice having one sitting around for that occasion.
Have narrowed it down to a list now and intend on working through it gradually...
The other thing that made this all easier was moving back to Canada LOL. It's much harder to buy/sell watches up here.