Trending @Accenture; Want to resign

I am planning for masters this jan , as of now i am not officially locked to my project but they gave access to the project portal after project kt was given , i am using billable charge code (but in workday the current project wont appear in profile because I'm not yet hard Locked).

So if i request for resignation will they release me early?? (because I'm not tagged and no official work) or i have to serve 90 day notice?? I want to work for 3 more months because I have time now.

What should i add in "roles and responsibilities" section in exit request portal for experience letter? I am kind of in bench from beginning.