There is no capital gains on crypto in Turkiye. Find a way to become a tax resident in Turkiye and cash it all out and then you can move your funds to whatever destination you choose to.

If you live in a developed country where there are many financial tools, search for a bank that allows you to borrow FIAT against your BTC. It is like a mortgage but instead of your home, your btc acts as the collateral. Some defi platforms probably allow that kind of schemes. You should check it out.

I can’t think of any other way.