You mentioned the line "btc won't give you 5x return" that verily true from its current position although it already got 4x within a year. Well to generate max profit from your money, it is important to diversification. People always advise to holding Bitcoin but I don't see anything wrong if you sold some portion of Bitcoin and by potential altcoins from top. Cause these can give you 5-10x depends on their potentiality. So yeah,that could be your life changing step but don't buy shitcoins
More than diversification, they should believe in the long-term more than anything else, that's how it should be with bitcoin because that 5x return in 5 years with bitcoin isn't really that much and the total growth would be far more astounding than many of us would think, that's how I see this happening. I can get behind with selling your bitcoins for altcoins but I don't recommend selling it right now, 2k in bitcoin is already a lot of money so I'm not sure why would you want to sell now when the potential for price increase of bitcoin is just too damn high right now, it's wrong to do it and remember that there's always the altcoin season after a bitcoin bull run, that's probably the time that you should be considering this kind of thing.