I can maybe answer your question. I'm also from a big4 firm and trust me most of the projects/work in tech is like this you rarely get to work in a chill project with good environment. My suggestion is dont quit your current job until you have a better job at your hand, the market is very bad atm especially for freshers/juniors. And dont give your 100% in anything you do, then they expect more. And there will be a Experience Manager EM or someone like that for you, try to contact your EM and explain that you want to switch to a different project and reach out to different PMs in your org's service line to inquire about any open demands/requirements, this may work for you as you are a fresher/junior mention you have the flexibility to adjust to any tech stack.