1) Your basis investment was made in BTC and then you turned it into other alt: next time fix a limit for alt profits (eg. 20%) and each week the move the profit difference into bitcoins. This is an easy money management method for preserve your initial investment and for take risk only on profits.
Thanks for the suggestion, but I'm not doing it. Apart from being more work for me, this would also mean we'd miss out on a potential big increase of an altcoin.
Without doing the exact math, take Stellar Lumens (not included in this experiment) as an example. If you would have taken all profit every time it reached 20%, the total value would be much lower than it is now. I'm not trying to time the market, I already know I can't do that. It's kind of an all-or-nothing thing.
Ok understand your PoV, so in my opinion it is advisable to extend the duration to at least 36 months. 12 months it's too close to a short-term investment