If you believe in cryptocurrencies, simply invest and start mining. Do not sell spoil, just collect it. You have cheap electricity so it will not be painful for your wallet. When the market will fly again to the moon, then sell what you have accumulated.
If you believe in crypto, you can also just buy and hold crypto instead of mining. You won't have a break-even period this way in the same way that mining does, and there's initially less risk as it takes time (quite a bit of it) to break even right now, even with cheap electricity. Mining hasn't been very profitable for the last few months, and I've shifted from mining to just buying and holding coins, and doing so has actually netted me a profit whereas I would still not have broken even with GPUs.
