For current time, minimising risk is the best strategy.
Diversify. Diversification minimises risk. Don't put all your funds in a single wallet.
There have been every kind of hacks, theft, robbery and loss due to owns fault in crypto.
Diversify the coins you invest in. Even the so called best investment coins are going through their bad times. (Ethereum)
Be wiser and try to listen what our senior mate give advice to us, it's better for us to separate our investments and always monitor of market movement.