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For the first question,
the answer seems to be 50/50.
I don't know if the issue was fixed, but when I experimented with 100 I got much lower payout than when using 50/50.
I don't know the reason, that's just what I observed.

For the second question, I don't know the answer.
I don't trade cryptos, have absolutely no experience with that.

So what do you do with the money?

What money if I may ask jokingly. Haha.
I'm not making any substantial income here to worry about that.

I'm not worried about anything. I'm just asking because I don't understand how things work.