From the OP profile I think he is an experienced investor, if he talks about being patient up to 10 years in his investment it is because he could have had an investment in the stock market, which gives profits in 8 to 10 years if he invests in the correct stock.

The profit you can get in Crypto, especially if you invest in Bitcoin, is 3-4 years following the order of Accumulation - Distribution Stage. At the moment the market is experiencing changes that have never been experienced, a pandemic time and in most countries confinement, but it has been proven that this is beneficial for bitcoin, which can give it benefits in the short to medium term respectively, this scenario is very likely.

When you talk about alternative cryptocurrencies you must bear in mind that they all depend on the movement of Bitcoin, that bitcoin is the only currency that has a life of its own, there are many currencies based on very good projects, which are giving a lot of good profits, but you must be careful because in an eventual correction or fall of bitcoin, altcoins radically bleed.