Needing advice to put 2 month on a schedule?

Brandy
On August 22nd she will be 10 weeks and I am starting another semester in nursing school and will have class from 8-5 and some days Clinicals 6-6.
She sleeps right now 3.5-4 hours at 8 weeks as of tomorrow ( she eats 3-4 oz) Any advice on how to get her to sleep longer cause with this time she will keep this momma exhausted.