You can mine it on your computer with some software (e.g., https://xmrig.com/ https://xmrig.com/ is popular but not the only option). Then you typically join a

You can mine it on your computer with some software (e.g., https://xmrig.com/ https://xmrig.com/ is popular but not the only option). Then you typically join a "pool" (because your little CPU is just a drop in the vast ocean of compute power hashing away and the next Monero block). The pool will pay you a little bit of Monero, based on your compute contributions to the pool. They pay the Monero to your Monero wallet, and then it's up to you to decide how to use it. Whether or not mining is financially viable (e.g., electricity cost) depends on a few things. You can use a calculator/website like whattomine.com, cryptocompare.com, coinwarz.com, minerstat.com, etc. to get a rough idea of your potential mining profitability.