Their is no two ways that you can do without the risk in gambling. Gambling is always risky and you can only control the risk in gambling by gambling with the amount that you can afford to lose and another way you can also reduce the risk in gambling is just for to have a limit in gambling and don't try to exceed your limits in gambling.
Trading had it own risk but the risk in trading is much better than what we have in gambling. Risk in trading is always massive when people go into trading and not having the knowledge which is required to trade. Trading risk can be reduced by understanding it.
There are actually two ways to avoid risk in gambling. Only gamble with how much you can afford to lose, and set a limit for yourself in advance. Stop playing when you exceed the limit. Trading also has risks, but if you do it with knowledge, they can be largely controlled, whereas gambling is all about luck.
If you can control your gambling and trading, you can prevent yourself from severe losses. And those who cannot control themselves are the ones who suffer the most from risky gambling and trading.
If you think about it, trading also can have some luck to it.
Look at the people who were early buyers of Bitcoin, Ethereum, Tesla, Microsoft, Nvidia, etc. Sure there are fundamentals but some companies or ideas just don't work out. And you can consider that bad luck.
When Bitcoin came out, people assumed it was a scam. Same with Tesla, they assumed it would be another failed electric car company. Same with Microsoft, being another dotcom bubble type of company that got phased out.
When you are thinking long term, simple luck does have fortunes to ones success.