OP, I think you should have to explore more and get familiar with the market. There are a lot of ways to earn and grow your Bitcoin and it was ONLY you who could decide what you gonna do. But of course, it all becomes more risky than usual and you should have to think it first before trying.
Nope, hodl isn't the only strategy for Bitcoin but it's for those who are scared of trading it. Only those who want to play safe go that route. Otherwise, one can safely trade to increase their quantity if they've the trading skills for it.
Indeed, right but that is too scary when you go trading without knowledge as having a bigger chance to lose your money. If we don't do anything and we just HOLD, that gonna be fine but we never think that we increase the quantity of our Bitcoin, only its market value as the price fluctuates.