not necessarily one has to go for a professional help at bodyshop
here is something I did on my daughter’s car before:
I used DupliColor clear, available at any car parts store
The only thing to add to my prior instruction: never try to get back and “touch up”: it will make fresh clear to contract and will make for “cracked/vintage” surface appearance, go with even wide strokes, side-to-side / top-to-bottom