Uhh.. if it's not very visible from standing view you could try and spot paint , but it's something in a broad spot you might have to paint the whole thing to make it even and unnoticeable.
I recently did my front bumper too after debdge left scratches because I did it at night after work lol (Ik ik its not very bright...literally too) so i covered deep scratches and badge boles using epoxy than tried to spot paint. Didn't like the result.. so I just prep the whole bumper and did the whole thing.
Here's the result
don't mind the lip lol that was already cracked tried epoxy on that too and ran out of e8h oem paint so I used something else xD planning on getting a new lip anyways >_>
Fiy this is my experience if you think you should go to shop for a professional job than do so. Best to get it done once unless you want the experience too hehe GL buddy