In terms of risk, what you need to understand is that there's no different between them both. I love to play crash and I have also play other slot games like plinko and there's no difference in there winning and losing streak. Both games or aspects of gambling is just same because you are relying on luck to win and not skill or strategy. You can not determine the outcome of your stake.
Yeah, both relies on luck but I think if it's with strategy, it's all in the mentality.
For example with crash, you'll count some specific numbers before you stop because the results are random. While in slots, you really have no counting strategy in there.
It's all random and that's truly a game of luck, even some strategies are being done on it. You'll never be able to determine how lucky you are.