As discussed in the comments, pins 7, 18, 21, 25 and 26 are drawn on your schematic as connected to the GND
net, but they are clearly not connected to anything in the layout screenshot. Don't forget to run DRC before you finish the design! Perhaps you disabled the ratnest for this net and forgot, or it's possible the wires aren't correctly attached to the pin in the schematic (it looks fine though).
In addition to this... You are using a USB-C connector, and have not connected the CC1 / CC2 pins. If you are using a USB-C to USB-C cable, then no power will be provided. However, a USB-A (host-end) to USB-C cable (device-end), will likely give you 5v. To check this, measure the voltage between your GND net and TP2
In the future, it's important that you understand the role of the CC1 & CC2 pins - they help identify connector orientation, and are also used to negotiate power, among other things.
Many basic devices simply use a 5.1kΩ pull-down on each CC pin, which should negotiate / request a 1.5A limit (i.e: one 5.1kΩ pull-down on CC1, and second 5.1kΩ pull-down on CC2). This is a fairly high limit for a simple widget, so you might be interested to read up on the details of this further.