OK Jake, here you go. This comes from my own trial and error, or just stupidity!
NEVER, NEVER,NEVER use a service!!! You will pay to maybe break even and you will probably bet 5 times more that if you bet what you liked! You'll hear yourself say, "They can't lose this week too? It's their lock of the decade!"
Don't bet teasers! There is nothing in betting that is more appropriately named. If you must bet them in the NFL, take the dog, not the favorite!
If you like a game, bet it straight and not in a parlay!
Manage your money so you don't blow it all in one day!
Know the difference between betting to win money and just playing for the action. (Ex. = MNFootball)
Good luck. I'm sure you already knew most of this but reading it refreshes all our memories.