Comment: turned out my calls would have been profitable if I have kept it, huh.
revised method to enter short-term calls:
1. narrow BB width
2. price above 10/20 day SMA
3. enter when price takes a dip below the 20 day SMA
4. As BB width was low, selling put spreads seems not a good idea. two ideas: purchase 3-month call to avoid theta burn, or use smaller portion to buy one-month, but more deep itm option, and left it be.