Hi! Chrissy
You need to search for a A+ Certified Service Shop in your area but If you decide to do it for yourself, for your screen you need to buying a new one Verify in Ebay with the correct model and part number of your laptop and compare the photo with your laptop screen before you buying and select the best price for you '''(It is best if you disarm the screen before searching and buying to make sure it is correct part number)'''
This is the WEB address of the service manual of you computer according to your information,
https://thinkpads.com/support/hmm/hmm_pdf/s1_yoga_hmm_en_sp40A26742.pdf
'''Carefully read all intruction before servicing the computer''' On page 27 you can see information on battery and recharge faults, On page 87 start how to disarm and change the screen, Good Luck!!!