I'm up 32.5% since it started and My philosophy is pretty simple. I almost exclusively bet the in-game options on the app right before I think something big is going to happen. Now, my bets are in the $5 to $10 range so nothing major but if you do several of them they add up.
For example, in the Notre Dame /Louisville game Louisville had the ball at the end of the first quarter down seven about to score. There was an in-game bet for the line at the end of the first quarter of Louisville + 4 1/2. So if they scored a touchdown or a field goal I would cover the bet.