My trust in Bitcoin grew exponentially when I knew the price history of Bitcoin.
Besides other things, history is one main thing used in technical analysis. You can't analyze a market if you don't know the history of that market. History helps you determine how that market behaves at different points in time.
Technical analysis is just extrapolating data and looking for patterns without understanding why the price moves. Which is quite bad, because market conditions change, so these extrapolations often fail. People can find success in trading stocks or commodities if they have a good sense of the forces that move those markets, if they have deep analytical skills. But it's hard to apply the same to Bitcoin because of how purely speculative this market is. The price goes up and down not because something with Bitcoin changes but just because some traders decided to buy or sell big.