Some of the wise traders don't wait for the market ATH. Just when they learned that the price is close to RSI overbought, they already dump and wait for months for the price to its bottom. But the trick there is they also have no idea where the bottom could be so they just buy at which price they are comfortable in dipping thier toes to a rocky river.

It's not so wise but it's still profitable for them. Because what is important is that they still have the capital to once again play in the market.

The year 2021 has passed but it has left a mark that will never be erased in people’s minds. One of these is the pandemic that until now has not been ended and is being cured. Many of the entrepreneurs went bankrupt and closed their businesses. And many employees in various industries have lost their jobs. But even though the past year has been difficult for everyone, the people are still positive and resilient and will not lose hope of recovering.

~snip~

Unless you take the risk to invest in an Altcoin that you think will pump a lot, to be honest, no. If there was a safe solution to double a capital, everyone would do it now.
If you are good at betting or to play poker than maybe, but it's not something I would recommend if you're already in debt..
Perhaps you can borrow money from your bank or something else?