What to do with my screen? As you can see my screen, it gives impression something got scratched on it but that's not the case. What can I do?
What I can see from the photo, it doesn't look like scratches. Instead it looks like the anti-reflective coating is "peeling off". This is a manufacturing defect.

Apple has a program where you can get a free display replacement, if this is indeed the case.

The following laptops are eligible:

• MacBook Pro (13-inch, Early 2013)
• MacBook Pro (15-inch, Early 2013)
• MacBook Pro (13-inch, Late 2013)
• MacBook Pro (15-inch, Late 2013)
• MacBook Pro (13-inch, Mid 2014)
• MacBook Pro (15-inch, Mid 2014)
• MacBook Pro (13-inch, Early 2015)
• MacBook Pro (15-inch, Mid 2015)
• MacBook Pro (13-inch, 2016)
• MacBook Pro (15-inch, 2016)
• MacBook Pro (13-inch, 2017)
• MacBook Pro (15-inch, 2017)
• MacBook (12-inch, Early 2015)
• MacBook (12-inch, Early 2016)
• MacBook (12-inch, Early 2017)

The program seems to cover them for 4 years from the original purchase date.

You'll need to contact Apple Support to find out if this is really the problem with your laptop, and whether or not it is covered for a free screen replacement.