Touch up paint hk.

my car is devil red. In a few small plastic spots, the paint was peeled due to the impact. While researching, I saw that the paint code can be prepared by entering the paint code with the machine in the industry. But how is the life and quality of this paint? It is very cheap in price. Can I find paint in this color if I go to the service? Or should I never handle it and leave it to a painter in the industry? Now I wanted to get it done for myself, because they want a lot of money for a few places. but I couldn't decide what to do.