I have the same problem... The quickest and easiest way to make money is to be the Banker as the odds are slightly better if you are. The problem is you need Pontoon which is up to the cards.
When placing your initial bet, or asking for another card remember the odds are far more favorable for a card scoring 10 than any other. So if you are dealt a ten to start, bet high as the odds are you will get another 10 making a decent hand of 20. However if you get a 5 or 6, bet low, as 15/16 is not a nice score as you need to ask for another card with a high chance of going bust. 2 and 3 can be worth a high bet as you may get a 5-card-trick, tho it only takes one 10 to stop that so its not all that easy. If you are dealt an Ace, bet high as you have good odds of getting a Pontoon.