As for your investment strategy, it's really up to you and your risk tolerance. Personally, I'd consider diversifying between BTC and ETH, like the 0.5 BTC and 5 ETH option you mentioned. Just remember to weigh the risks and potential rewards carefully.
Well
I have a very busy job so I'm destined to be a long term holder instead of a trader. I just don't have the time to really dig into it. Probably not the skills/experience for trading either.
There have been 5 or 6 enormous dips in BTC's price since it was launched. Crashes between 50% and 90%. I don't know if most skilled traders were able to see those coming, and exchange their BTC for cash at that point just to buy back later. If you had managed your BTC portfolio correctly throughout these waves, you could easily triple your BTC assets by the end.
If I hold BTC for more time (let's say a few years), ignore the dips and rises, and end up at a 4x higher price point than what I bought it for, I guess that's okay.
It's probably not optimal but still a better return on investment than leaving my fiat money in a bank. This would be the strategy for BTC
With regards to ETH.. That would also be for long term storage.
However there is a key issue that I'd like to address. I saw some videos of ledger live users receiving spam and other attacks, based on their Ethereum addresses being public and thus attacked by thieves. In that regard, is it smart to keep my BTC and my ETH on 2 separate ledger devices? This way I spread the risk.
Correct me if I am wrong, but if I only store BTC on 1 ledger I have not heard of any attacks on that address.