I will say some things clearly at once, to avoid repeating myself.

My opinion on contract-type products is very straightforward - the cost-performance ratio of participating in them is simply not worth it.

This is not moral coercion, but purely a mathematical calculation: the odds structure is naturally tilted towards the platform. With a 1:0.8 payout setup, you don't need to waste your energy on games that rely on "guessing results." There are too many opportunities in this market with better win rates and odds, so why choose this one?

I am not just talking theory. To be honest, I have paid tuition myself, and as someone with a complete trading record and a long history in the market, I also lose money on these types of products.

The amount of money lost is not too much, just a few hundred USDT, but the whole process is particularly representative:
At first, I didn't care and thought it was easy to make a profit.
Then start imagining a winning streak, doubling the investment, and quickly doubling it;
It was only at the end that I realized this mechanism's limit was set from the very beginning, leaving no room for adjusting strategies.

Once I calmed down and reviewed, the conclusion was actually very clear:
This is not a matter of technology or judgment, but a problem with the product design itself.

From a framework perspective, it is not designed for you to make stable long-term profits through analysis and judgment.

So I can advise one person at a time. If you think you have a more stable mindset, better judgment, and stronger emotional control, then go ahead and try; I won't stop you. But at the very least, understand what kind of game rules you are up against.

It's still more reliable to return to the fundamentals:
Grid strategy running slowly;
Focus on shorting small coins during weak cycles;
By extending the operation cycle, the probability of making mistakes naturally decreases.

Some gains are not that you can't earn them, but rather that they are really not worth pursuing in that way.