Ok, let's be honest, I'm giving you all 6 tips.
Tip 1 (1:07) - Have an investment plan (hold, cost average, swing trading, day trading, etc)
Tip 2 (5:20) - Don't trade emotionally (educate yourself, don't invest more than you can afford to lose)
Tip 3 (7:41) - Hedge your bet (mitigate risks, diversify to an extent, don't go all in on a single investment)
Tip 1 (8:55) - Never market order a low cap coin (don't fomo/chase the trend, high volatility)
Tip 2 (10:26) - Use a stop loss (prices are very volatile)
Tip 3 (11:14) - Don't enter a position you can't exit (low liquidity)