Did you try using the other USB-C port? Are you using the correct cable (not all USB-C cables are capable of charging the laptop).
Try an SMC reset.
Try unplugging the charger from the electrical outlet for a minute to reset the charger's internal circuitry.
Here is an Apple article for troubleshooting USB-C charging issues:
https://support.apple.com/en-us/HT204652
See if your laptop qualifies for this free Apple battery repair program:
https://support.apple.com/13inch-macbookpro-battery-replacement
You should also check whether your laptop qualifies for this free Apple SSD repair program:
https://support.apple.com/13-inch-macbook-pro-solid-state-drive-service
FYI, here is a current list of all the publicly acknowledged free repair programs for various Apple products (some products such as your laptop may have multiple programs):
https://support.apple.com/exchange_repair