How much to leverage?

First of all, it is only possible to leverage if your stop is short. And for that, you need to be aware that you are in a region of trend change.

Even if you have the discipline to seek these positions, you may be susceptible to leverage more or less, depending on your risk reading at the time. So it's better to have a standard, for example: 5% 3x for tests within the channel, 25% after confirmation.

For the search for a fund, the same philosophy applies. Increase the proportion of the bet, without wanting to hit the exact amount. If you can't stand the mistake, it's a sign that you can't leverage either. It is more prudent to split the entry, as you may need about three tries to get it right. Better than staying in the all or nothing.