My LO is (just) 6 weeks old and we left the hospital with me expressing and then comping her with formula. I feel your pain in regards to expressing every 3 hours and then all the sterilizing.
Baby finally latched at 3 weeks.
I also had supply issues and am on motilium. I'm just now weaning off it.
We are now at a stage where we have weaned the formula and she is 100% breast fed.
It took a while, it isn't easy and while it's true breast milk is ideal for a bubby,
What's best for the pair of you is what has you happy and stress free.
I'm happy i persevered. B00b is awesome! It's such a great bonding experience. No bottles, no sterilizer and the best... No expressing!
Don't feel bad about the choice you make. You will make the best choice for the pair of you.