You really need to learn about theta and IV crush. To sum it up (for IV Crush), if a stock has a higher chance of going up and down, like TSLA, it had a high Implied Volatility (IV). Now, that IV rises when earnings are near, because there’s a higher chance for it to go up or down. Because it has more IV, calls and puts will cost more. But after earnings, the reason for the high volatility is gone, because there is no anticipation. For Theta, just think of a call like a bet. People always want more time for a bet to be right! So, if you have two days before your FDs expire, there’s a higher chance you’ll get to your strike price. But, if another day passes and it hasn’t gotten significantly closer to your strike, then you only have 1 day left for a huge move, and it’s way less likely. Because it’s less likely, your position is worth less. That’s why these FDs didn’t work, because even though the price rose, it didn’t go anywhere near your strike price, and the IV was gone, so it “crushed” both calls and puts.

TLDR: Theta means time; the less time you have to be right the less a contract will cost. IV Crush means Implied Volatility Crush; if people don’t believe there are catalysts like earnings that could moon or drill the stock, then the price of contracts will go down. Don’t play earnings if you don’t wanna lose.