If you cant afford disposable, I'd reccomend making some makeshift reusable pads until your circumstances change. You can get free or especially cheap tshirts (or maybe get lucky and find disposable or reusable prducts) and sew them into a makeshift pad. Best bet, just keep an eye open at thrift shops, something will come up.eventually.
In regard to a routine, avoid spicy food, alcohol and caffeine, pee right before bed as much as possible. Try to sleep on your back if you can.