[DIY] Painting a 20-year-old wooden door

I painted a 20-year-old wooden door.
The condition was fine, and I tried a spray gun because of the molding.
I made the paint too watery in case the spray gun gets clogged
The paint is all ruined... (Crying)
Eventually, I repainted it with a brush/roller
TIP: It is easy to adjust the spacing if you use a coin when installing hinge.