Being a predictor is just like being a stock investor.
You'd have more confidence if you back-test more than you play. Back-testing helps you to gain the insight you need to be more accurate over time and that can take a lot of long, hard and complex work. All of that work will start to pay off as you practice getting better. I recommend starting with a quick 10 drawing back-test then moving on to a 100 drawing back-test. It will take time to evolve from, you suck, to now you're good, to now you're great.
If you wouldn't put all of your eggs in one stock then don't put all of your eggs in one state. By playing online you have access to 71 drawings a day. If you don't want to be a player/predictor in the game but still want to win some money then it would be wise to bet on multiple highly successful players/predictors. Just like it's good advice to grow your money through several different investment firms instead of just one, the lottery is no different.
It's best to master one strategy that's based on one goal. For example, my goal is to create a strategy that gives me the opportunity to double my money within four drawings and break even within eight drawings. That's my standard, develop and customize your own standard then seek to improve from there.
Carefully analyze the risk and the rewards. If you know you can't afford to play then don't play. It ain't trickin' if you got it BUT if you ain't got it then don't do it. It's one thing to jump on a opportunity and then there's being impulsive. Know the difference.
Gambler's do not carefully analyze the risk, investors do. No one will ever be 100% accurate 100% of the time but with a lot of effort you can work you way up to 99.9% which is still awesome.