formula feeding support

ivana
ladies, i need support. 
i had my baby last week at 37+5 via emergency c-section (because of stress-inducet early labor while baby was breech), he is doing just fine, thank heavens. 
i was breastfeeding him even though my nipples are too small and i need to wear nipple shields so he csn latch. but as soon as i started having milk, on day 4, i developed severe mastitis, my breasts were like watermelons and hard as a rock. i actually had pus coming out. i never ever felt pain so horrible.
so after blood works and doctor consultations, i decided to stop breastfeeding completely and start mastitis therapy along with medicine to stop milk production. i go for breast massages and milking therapy twice a day (i'm still at the hospital), and finally am able to hold my baby and enjoy him. 
now, the reaction i got from friends and especially other moms was horrifying! they are making me feel so guilty about not breastfeeding anymore, i can't stand it. for days now, they are calling me and texting me to tell me that i made the wrong decision, that the doctors are wrong, that  i should not listen to doctors because they are a part of "formula feeding mafia", that i will regret it... 
i mean, what could make anyone say something like that to a new first time mom, who had to make very difficult choices in one wek of her child's life is beyond me. 
i am just so sick and tired of all the negative feedback. 
the only people who support me are my husband and our parents. everyone else was literally telling us that we are bad parents already. 
so how do i deal with this? 
my baby boy is doing just fine, there's nothing wrong with him, and i am so thankful for that.