The outcome of the work is you. You get better, no matter the outcome.

By working you build the muscle of discipline.

By working you get faster and more efficient.

By working you eliminate weaknesses and enhance your strenghts.

All of these are a byproduct of engaging in the process, independent of whether the thing you produced has any value, or is considered ‘good’. There is profit to all labour. Do something 100 times and you won’t be able to stop yourself from improving.