Not sure if this belongs here, but how do I cash out a put option?

17 year old beginner here trying to make a trading plan for when I turn 18. This may be a stupid question, but I couldn’t find any answers online. After the stock goes down and you want to exercise your contract with the seller, how do you cash out for a profit? Are your only two options to buy 100 shares, sell them for the raised value, and then flip the shares for a profit, or sell the contract? Is there not a way to simply get the theoretical profit from the seller without all the hassle? Thanks to anyone who answers.