@Master Small suggestion i was faced with same problem a week back here is how i handled it
Leave everything aside and just completely focus on 1 thing either gs or optional whole day at keast 10hrs/day
I did gs it hardly takes 4-5 days to fully complete gs with good grip move on to next next and then optional
Doing multiple things for me ended up in me doing nothing full day rather if i concentrated on one subject it allowed me to grasp it and develop good interlinkages in the gs portion itself
Then move on to optional i know its risky as days left are less but thats how i did it