What's your problem?

There are a lot of ways to know how Uniswap work correctly, like in youtube or some article out there you can learn by that.

DeFi system has been booming right now and decentralized exchange will be loved by most crypto user now. Uniswap is one of the few DEXs frequented by many users. But I just give you a suggestion, before you know DeFi system is and even you didn't know the crypto currency as a whole don't be tempted to spend your money. Understood first how it works and you will be fine to choose a new project that you interested.