I wouldn't expect you to win 9.5 million by betting it all every time.
An unfair coin that returns 55% odds on is not unlike optimal play in blackjack (using 6-8 decks, counting cards, and with no more than 4 players + dealer). Without a team of players, the best way to place bets that I've found is start at the minimum bet (anywhere between $5 and $20, depending on the table and time). If you lose, you double the bet. If you win, you reset your bet to minimum. Don't forget to tip the dealer. She's hoping you win, too.