Hey Viktor, great question.
First, you can progress faster by iterating fast, consulting with people who already tackled that challenge, and trying to learn from every iteration.
Second, you also have to manage your expectations. As I said, growing is hard, it is painful, and that part can't be skipped. But you can really appreciate that, also. I like to look at my journey from a third-person perspective – that allows me to separate emotions and actually kinda enjoy the challenge.