How profitable is Helium?

I'm curious, could you elaborate on the profitability of Helium? I've heard of its potential in the crypto sphere, but how exactly does it generate revenue? Is it primarily through mining or staking? Also, how stable has its price been in the market? Are there any significant risks associated with investing in Helium? And finally, given the current market trends, do you see Helium as a viable long-term investment?