I am no expert but I can win often enough. Some tips:

• If you can get one joker at the start with mult then don't spend any more money for the first couple of antes unless something really good comes up. The interest helps build up cash.
• Winning the early blinds in the early antes in one or two hands helps you get more cash.
• I like the Flush hand. Reasonably easy to get and you can win your first blind in one hand if it's good enough.
• Only spend money on things that build towards your strategy. If you're going for flush, don't waste your money on improving straights or whatever.
• Look for jokers that build up over time. E.g. chips per hand played, mult per bundle skipped, etc. These can be important for getting over that 8th ante but they take a while to pay off.
• Remember your score is chips X mult. If you have lots of chips and few mult then you won't get enough points. But equally you need enough chips to make the mult actually multiply something. Work towards jokers that provide chips, +mult, and Xmult.
• Jokers are assessed left to right. It you have a Xmult joker make sure it's to the right of any +mult joker.
• Don't skip blinds unless there's a benefit that plays into your strategy. Playing more hands helps you build up the scores of the long term jokers.
• You can't always win. You may not get good cards/jokers/bundles and that's just life. If it's going poorly you can just start again.