Bitcoin is a bit hard to understand, but the concept it depends on are very simple. This is one of the best graphics to understand why bitcoin can’t be cheated. https://twitter.com/BTCOVERFIAT/status/1438958264251785226?s=20
Like Satoshi Nakamoto writes in the Bitcoin Whitepaper, he proposes a solution to the double spend problem. So far, 13 years almost, bitcoin has kept on ticking and storing almost a trillion dollars worth of value inside it. So, the system works. Will you get your hands on some sats?