IV Implied Volatility, if the implied volatility is 20%, it says that stock price will be 20% higher or lower in years time
IV Rank, tells if the implied volatility is high or low on a specific underlying over a specific timeframe. Sell options with IVR Rank of 30

45 DTE (Date Time to Expiry). We get most out of expiry if we trade with 45 DTE

In periods of normal to high volatility, overall theta of portfolio to be half of net leg.
Manage at 50% of total potential profit, and reinvest, overall profitability increases and volatility of portfolio decreases.
Take trade at 45 Dte and roll out at 21 days, this smooths out the delta risk
Redeploy capital to high probability trades at high IVR, after roll out at 21 days or taking 50% profit.