[looprecur]

Motivation is tricky. Sometimes it's worth it to continue, and sometimes it's not. Only you can make this decision, but you have to listen to yourself and figure out what it is that's bugging you. If it's a transient "motivational crisis" you can take some time off. If it's more permanent, then leave.

Academia sucks, but it's not much better than most corporations are. It's just different. In academia, money and resources are scarce but time is abundant. In corporations, money is abundant but time seems scarce (because of tight deadlines, 90 percent of which are completely arbitrary). So (to simplify grossly) academics build really cool things that no one uses or cares about while corporate employees build ugly commercial things that are actually useful.