The best bet now is to HODL even if you are investing in altcoin find some trusted ones and HODL while if you reduce risk entirely just stick with bitcoin since we have seen alot of altcoins which fail to meet expectations.
It isn't just the best bet now, it has always been the best bet right for time but people choose to ignore hodling but encourage trading and the exchanges are among those pushing this agenda to encourage trading as they make more money from those trading using their exchanges. People have been brainwashed into thinking there's more profits in trading than hodling, they consider hodling to be boring and I have seen people saying trading is a way of making passive income from Bitcoin and people believe them without understanding what passive interest income is.
You're stressing yourself when you trade while you could have just bought and hodl your Bitcoin and make the same profits. The highest earners in the history of Bitcoin, isn't the traders but the hodler and they do so with minimum efforts. All you need to hold is just to get a good self constodial wallet to use so your coins don't get exposed to hackers.
Also you shouldn't be disappointed or give up in bitcoin or crypto investment if trading hasn't work for you just try to HODL bitcoin or at least do more proper research on the altcoin you choose to HODL
While you're talking about hodling altcoins, I just want to put it out there that they're a gamble. Altcoins don't have the same fate as Bitcoin. You can hold Bitcoin and be guaranteed that you'll make profits when the market is bullish but the same thing can't be said about altcoin and how do you do your research to know which one will do well when the ones doing well recently aren't even the ones we would've called the good projects because I see just projects with good marketing teams doing well irrespective of the projects been trashed.