religion is nonsense that badly tries to answer that question
I agree with the post otherwise, but "badly" implies that there is a "good" way to answer that question, which I don't think there is.
it's impossible to answer life's questions, such as "what is the meaning of the universe?" or "who created everything?", so all answers are equally valid. Religion is based on belief and it comes down to which belief (or disbelief) you subscribe to.
For someone who believes in one religion, other definitions of God or atheism may be the thing that feels like "nonsense", and nobody can prove anyone's wrong.
I'm someone who sticks to skill-based hobbies for months / years.
What keeps me interested in a given hobby for a long period of time is the dopamine hit of the reward at the end, and once I achieve one thing I want to move on to the next.
In a sense, my interests within a hobby change frequently depending on my achievements, but I also know that the kind of achievements available get "better" with time: You can't beat the final boss if you don't beat the first boss !