Hacking is not easy because it takes a lot of trial and error to be successful. Cybersecurity experts spend a lot of time and money to make it hard to hack. Still, there are many jobs and learning opportunities for ethical hackers.
A VPN connection can be tracked by the police or your employer. The police would need a search warrant to obtain logs from your VPN provider. Your employer can view your traffic at any time since you are connecting to their network.