One lesson I am grateful to have learnt on this website is to largely stay away from bubbles (especially in terms of money I do not feel comfortable losing). I used to try puts on TSLA since I've always had thoughts on it's completely irrational valuation. But after losing money a few times, I've learnt to stop making that trade. Nothing like the pain of loss to teach certain life lessons. Better to find undervalued stuff, buy when the market valuation makes no sense, and then do the time arbitrage till Mr. Market takes his meds. Seems to be a more consistent path to making money than riding waves.