Freoway2go,
Your main problem, apart from following the Dockers, would appear to be backing short-priced racehorses. Putting $hundreds on a $1.10 place chance or backing odds on straight out is fantastic - for the person on the other end of the transaction. You can bet with me any day.
If you're going to back 3/1 ON chances, then you have to have a strike rate of 75% (3 out of 4) - JUST TO BREAK EVEN. Think about it. At even money, every second bet has to win, just so' you can have the same amount of money you started with. Not even super short-priced horses can maintain that sort of strike rate. Just look at Victory Vein in the Flight stakes today - she never was a $1.40 chance to start with.