this is a good strategy for those who don't want to do or monitor the market on a daily basis, they will buy then forget about it in a few years then reap the rewards, but not suitable for high risk altcoins, and it is recommended to buy low risk coins, maybe top 10 better marketcap.
the most important thing is don't forget to save the assets you bought in your wallet. don't leave it on the exchange. for long term holding, it is better to focus on Bitcoin. and just ignore Altcoins, even if they are top 10 marketcap. because in the next few years, we will never know what will happen to the projects where we put money. what happened to FTX and Luna should teach us many lessons for choosing a project.