You need to believe that computers are understandable. There’s no magic involved. Eventually, every abstraction leaks — so if you have fear or learned helplessness blocking you from trying to understand the leaky abstraction layer, the only way you can debug it is by squeezing your eyes shut and trying random things, which is ineffective. You really need to internalize that even things that seem mysterious happen for reasons, and that those reasons are something you could in principle figure out.