I know you already placed your bets. But from betting on MMA for a year and a half (still a novice compared to some people here), I've learned that you have to accept lower payouts if you want a real profit. You shouldn't feel "decent" winning $5k when you're wagering such a comparatively low amount. You should feel extremely lucky. I have a pretty good pick rate, and I put small amounts on 5+ leg parlays every card but there's only a couple instances where it actually resulted in a $1k+ profit. Parlays are tough for a reason and anything can happen in MMA. They're attractive and tempting but they're far from easy money.
If you want a more realistic profit you're usually better off putting up more money and betting on singles. Bet your confident picks and feel good about getting a little profit, and play the odds a bit more (like on Jake) for a potentially more sizable profit. You may not win $5-10k (unless you're putting up a lot) but you're much more likely to get something doing this than to walk away empty handed.