It's difficult, and there is a high probability of total loss, with no quick-fix secrets. There are indeed individuals in the crypto space who turned a few hundred into a million, but that's no different from winning the lottery.
The truly feasible approach is to start with low-risk investments: dollar-cost averaging into mainstream coins and holding for 3-5 years. This is the most stable way to earn money through market cycles without needing to monitor the market constantly, but it requires patience. You can earn small amounts through knowledge by deeply researching a niche area, such as writing cryptocurrency investment articles, managing community operations for token incentives, or assisting projects with compliance. This approach is slow but helps accumulate capital and experience without risking total loss. If you have resources, you could engage in compliant businesses like stablecoin cross-border payments or on-chain salary settlements. Many companies currently have this demand, earning service fees with low risk but requiring execution capability. Avoid leverage and contracts; 9 out of 10 people who use leverage end up losing money. Even if they make short-term profits, a single market crash can wipe them out. Stay away from small coins and meme coins; while they may seem to rise dramatically, they are often just schemes to profit from naive investors, and you never know when they will crash. Do not trust insider information; those claiming to help you quickly become a millionaire are just trying to scam your capital. The priority is to ensure you do not lose money, then gradually earn through time and knowledge.

