When does feeding get easier?

Don't give up! It will be easier and easier. Consider the disadvantages of formula. Your baby might have bad reactions, like milk allergy or constipation, gas and colics. I would give it a try for a couple of weeks. Just the time for your milk supply to stabilize. Around week 6 you can introduce a bottle and feed your baby with expressed milk in the evening. Your baby's belly will be full and he will sleep longer.