OP, if you are at the point where you can’t tolerate it any longer and don’t really give a $hit about your job, just try to take it easy as much as you can while you look for a new job / apply to grad school / think about what you wanna do, etc.
Don’t get too caught up in turning in the best work you can with all the details polished. try to slack a bit, try to push back couple projects with b.s. family excuses, take fake sick days, try to bounce after 6pm sharp with the note that you’ll get stuff done at home later if $hit comes up, don’t answer random emails from clients past 7-8pm, etc.
Like it or not, over 90% of biglaw attorneys will get fired past 5-6 years into their jobs. Even the very star associates who work to their bones will likely get axed come partnership review time. Biglaw is a temporary gig for the most, and you treat it as such.
There are intellectually challenging jobs out there with strong pay, but those are hard to get, and many times, those gigs require STEM degrees with substantive related experience. My cousin majored in CS & Stats in college and now works as a ‘data scientist’ at a F500. He does cool $hit like analyzing data and coming up with a corporate strategy, based on the statistical models he builds using a combination of coding, Excel modeling, and some stats software package. I saw some samples of his work, and it looked interesting as hell. Damn did I wish that I could have his job, even if it pays half of what Biglaw pays. Too bad I was a brainless Econ major and did law school.
that being said, for now just plan on getting the hell out of biglaw gradually while collecting the paycheck. I mentioned that you should look into compliance roles at corporations. You say it’s boring, and you’re right. But, don’t forget that once you get ‘in’ at a company and network with the people, there’s always a chance that you can switch into a different, more interesting role down the road. Very few interesting jobs just fall into your lap. you just gotta go out there, hustle, work hard, see how things go and hope for the best.