Will this brick my PC

Short Answer: No, just restart if anything goes wrong

Long Answer: No, Suspending a program does not carry over between restarts and neither does Suspending or Stopping a service. Additionally, Critical processes and services can flag themselves to not be paused or stopped by other processes, even with admin rights. Below is an example from Avast:

Most Critical System processes and services protect themselves, however a baseline of what Windows should be running (See: How It Works) has been built-in to prevent issues to those that don't. All non-portable AV / Anti-Malware applications and services I've tested use this to not be instantly killed by Malware. If yours is affected, please make a ticket immediately.