Hi,
Your LCD screen is damaged beyond repair & will need to be replaced.
You have the option of purchasing a replacement screen and doing the job yourself, you can find videos on YouTube.
Or you can get a quote from a repair shop and decide which option you prefer to take.
If you are doing the job yourself make sure you have the correct LCD and assembly options, then after thoroughly researching the task and pitfalls (ruining your new screen), make your decision on replacement.
Hope this helps