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You're probably losing money because you're buying expansive premiums due to increase in IV. If you have TD Ameritrade (or any other broker other than Robinhood) you can see the implied volatility of a stock. You want to buy an option with low IV so that once the stock actually moves IV goes up and you make money. Low IV is about 30% and below. Depends on the stock though (for example Tesla always has high IV because it moves so much). Also before you buy a stock buy the lower price (bid) and make ur way up, don't do market orders because then you will get over charged.
Btw you can view the IV on Robinhood by clicking the bid/ask price.