LOL. Blind hog....acorn...you know the drill. Just the way I see it.
Unfortunately when it comes to my own team I'm totally blind.
Back when I was both blogging and paying VERY close attention to college football, I tracked my own results against the spread for a season.
I would pick mostly Big Ten games and then a couple OOC that I thought were interesting. Largely I was looking for games where I thought for whatever reason the spread was wrong.
However I had two rules. First is although I was picking, I didn't count any results for the first two weeks of the season (and had I been betting, I wouldn't have wagered). That's because of the turnover in CFB you need to wait until you know what you've got. The second was that I wouldn't count any results for a game Purdue or Notre Dame played in, because I didn't believe I could make objective picks because of my fandom and hatred, respectively.
So yeah, I get the blindness aspect when analyzing your own team. It's like proofreading your own writing; you just get blind to the errors.
Excluding weeks 1-2, and not counting Purdue/ND picks, I picked 62.5% ATS that season. Had I been laying down $100 wagers per game, I would have walked away up $1200 at the end of the regular season IIRC.
It was a fun exercise, but I realized that for the amount of time and analysis I had to put in, I would have to be wagering a much more uncomfortable amount of money to get enough of a return to make it worth it.