I've done nothing to build my career, but I also feel kind of okay with that. I put in effort early on in my graduate school, had high GPA, won an award (departmental, not like some thing from out in the world), but I didn't do any of the networking or planning out how I'd handle transition to dissertation or anything like that. Basically, I did the bare minimum (coursework and such) very well, but I didn't do anything beyond the bare minimum. I'm not gunning for a super high power job, so it's not an especially big deal, but I do think it's a deal still. I snapped out of my funk the other day and started working again, but I kind of blew it today because I wanted to finish Ace Combat and so just did that when I got home. I could make myself work now, but I won't. I know people usually say that graduate school burns people out from making them work on stuff constantly and feel like they're doing nothing, but I really have been doing nothing but coasting by for ages.
Edit: What I kind of wish was that I had a job where I could just go to that job, for the designated hours, and then not do the job outside of those hours. I know that the sort of work I'd probably be getting into is the opposite of that, many jobs involve somewhat unpredictable extra work. I also know that I'd be putting in way more hours than I currently do, so in reality I'd have gained nothing. But the comfort of not having to worry about making my own resented makework for myself is nice. I could just go to work, come home and game, repeat until my parents die and then I can die.