It's simple. If you don't buy into crypto, you are short crypto. If you buy in, you are long. I have to decide where to put, lets say, 50k USD in savings each year. Where should I put it? Stocks? Which ones? What are the returns? What is the growth?

Crypto? Which ones? What is the projected growth? So far, I rather put everything in Crypto. Just buy in, dollar cost averaging in the projects you believe, or just 50% BTC and 50% ETH and wait a few years. Again, no investment advice ;)

I will continue to trade, and then put some money back into real assets like apartments or houses, or hope that staking is finally regulated and I can just keep everything in stablecoins or stake ETH and have a fixed income.

How do you minimize the risk of not being able to convert it all back to fiat currency?

You don't invest your life savings, just enough to where you can let it sit. Convert small increments to fiat when it's high, or purchase using crypto directly.

OK