I could have written this myself
I think the thing I found the hardest was that I just didn't understand breastfeeding and because I was formula fed from 6 weeks, neither did my mother. My mother was actually quite supportive but I got all those comments as well and it's so hard because you're already struggling and second guessing yourself.
It's completely normal, the best advice I could give is trust yourself, trust your baby, accept that sometimes you will have days where you don't get round to doing anything other than feeding baby and maybe brushing your hair.
I used to struggle to get from mine to my mums because by the time she had a clean nappy, I had brushed my teeth, got the dog in the car, she could be ready for another feed. Or she'd fall asleep so I'd have to wait for her to wake. And i only wanted to go to my mums for a change of scene because I was so fed up of my house!!
I found there was a slight turning point at exactly 12 weeks, she still seemed to feed constantly but I noticed I could suddenly get to my mums without a mad stress rush.
Everything feels so slow and yet it does go quite fast.
You're doing very well, this is normal. I promise it's normal. A group that really helped me on Facebook was Breastfeeding and Lactation Support U.K. it was just somewhere to go to get support and reassurance and somewhere to moan sometimes as well. I cannot believe I'm writing this, but breastfeeding is so easy for me now, i can't believe it because it was so agonisingly hard in the beginning.