When we are talk about the Key criteria about trading for me first come to the mind is the RANGE of price.
1) Support and resistance is key role while we are trading the market.
2) Market 95% times playing within range, So be patience while trading.
3) Fund management, Crypto is high volatile market so while doing trading in crypto market you need to keep Stop loss and manage the risk as crypto can Pump and dump highly at any time.
4) Do not rush to buying huge quantity, Most of trader doing scalping by buying huge quantity but it will not work all time so better to keep quantity minimum as loss affordable and focused on Right entry for buying.
5) Buy in Red and Sale in Green, Crypto is giving many opportunity like Red day for shopping so we just need to have patience and buy on red day so we can enjoy Green Day.