Dear God. The number of gamblers fallacies in this statement.Any smart gambler would not be greedy and let the house have chance to kill it off if you lose the over.
I hedge bets all the time if the last play can be hedged to guarantee a profit.
Buy half point(-130) to 46 and play it under for 600. If it finished at 46 you win and push you still win the 1400.00. The guarantee is a minimin profit of 620 regardless of what happens.
FWIW Only 3 teams scored over 20pts by the visitor in Tampa when starters played.
The first game of the year was at Dallas with Tampa. That line was 49.
It finished at 19-3.
GL
Its hard enough to win---if you don't have the fundamentals you really haven't a chance. Hopefully you just do this for fun.
This is about as amateur as it gets...