The thing here is to be active while holding your tokens. You can exchange them witch BTC, ETH and each other. This protects you from huge loss. You can also open positions on margin trade while the market is undergoing price dumps.
If you still have the right amount or savings that you can risk in cryptocurrency then risk it because it the market bull run is soon approaching we've been in down for so long so it is better to stock cheap coin now then when the bull run emerge then you'll get a lot of profit.
what do you mean by worst idea? I dont see any problem with that, leaving a job to put all of your time in cryptocurrency. if you really can handle yourself without a job then its not bad at all.
for some people investing in crypto is their first experience and is a novelty so they need a trust in this investment and maybe they try to invest in a limited amount and if it has been confessed and profitable they will definitely invest more
From the current image of bitcoin in the international market the future is much obvious and we can clearly see that bitcoin is the future of crypto. Ethereum is currently far back away and it is also considered as a weaker crypto while bitcoin is a much stronger currency.