Only invest what you can afford to lose
This is very important point in cryptocurrency industry, always invest what you can afford to lose due to some risk that cryptocurrency involve. So don't be blind by aim of becoming richest and invested all life savings.
Invest in Cryptocurrencies with long term potential.
As for me long term crypto investment is the best strategy due to halving block period that do occur very four according to history of Bitcoin,and I also found it as stress reduce in crypto compare to the short term trading which involves some analysis.but the only thing long term investment need is patient.
Try to have emergency funds
Emergency funds are funds kept somewhere else so you can fall back to them in case everything else fails. Like i said earlier, losses cannot be 100%.
If seriously you want to enjoy crypto investment you need get some savings apart from what you have invested to no course any distraction to your investments, especially like selling some of your coins when you are in need of money and is period of bear market, that action will make loss and start panicking which may lead someone to any action.