What did it really cost?
Record the material, the consumables, the tool you bought, the tool you rented, and the professional help. Track rework and refunds. Something already in the cupboard is not the same as something available to everyone for free.
How long did it take?
Active work time and elapsed time tell different stories. A few hours of work spread across several weeks is not an effortless afternoon project. Keep both when you can, and label estimates when you cannot.
Who helped?
A specialist can make a project possible, safer, or simply better. Name the contribution rather than editing that person out of the result. Doing some of it yourself is not a lesser story than pretending you did all of it.
Would you do it again?
This is the useful question at the end. What would you repeat, what would you pay someone else to do, and which attractive decision turned out not to be worth the trouble? The answer belongs next to the reveal.
The learning stays in the story. So does the useful part.
Make your own project brief