Personally, I only put my chips on bitcoin, I have so much to learn yet.
That's one of the safest way if you are just going to hold your bitcoin and wait till the value rises up.
If we talk about long term investment, I do not think that we should consider just holding on to the cryptcurrencies, investing it in crypto businesses is way better in my opinion, it is a big thing considering that we are not spending the crypto we hold so we might as well invest it to something that has a return.
Learning the best practice before jumping to any conclusions, it's hard to invest if you don't have the right knowledge with
the venue of investment that you'll going to invest with.
Passive cashflow is better than stagnant one. Consider doing spot trading to grow what you are holding, my friends gave me these tips and I am currently saving to have a fund for trading.
Not an easy task but doable if you'll spend time learning the process and achieved skills from time to time coming from your personal experiences.