Averageg, when you built up to 7k that time did you do flat betting? What was your methd. I might reload with $50 tomorrow.
It was money management (something I should have followed after "making" $9800 in April in MLB - but have been losing money since!).
Play small at the start, bigger at the beginning of Week 5, don't bet other sports on off-days with the same bankroll (have a seperate amount for NHL, NBA, etc). Don't have the mindset that you'll be winning a certain amount every day...if you lose, just walk away and analyze another game on another day...don't chase.
Seriously, college football and NFL is going to make you a lot of money. Good luck! I gotta get up early tomorrow. later.