Why is nighttime breastfeeding important?

What are Formula Mom's doing to stock up or planning on doing? I plan on breastfeeding but there's a chance I could need to supplement but the 4 cans I saw on the shelf at Walgreens last night were $30-$50. When my daughter was born in 2018, we paid $14 a can. I needed to supplement with her.

My dad is so annoying?? I'm super antisocial.... So too much people interaction will drive me mad... I need my space to breathe at one point. While I was staying with my sister I decided to sleep in the living until I move.... I was 8 months pregnant then. So tell me why my dad wakes me up 3am asking me if I want chips?... Tell me why I wake up with the lights on 2am with him mopping the damn floor?... First of all when does my dad ever cleans??? It was so hard to fall asleep, so for him to wake me up constantly I was so devastated and annoyed. Third of all as soon as I go to the bathroom or walk around, here this man goes running upstairs looking for me... Like leave me alone bruh... You don't want me for anything why you keep messing with me. Both of my parents are separated so I hate when my dad sh*t talks my mom... Me and my mom has a rocky relationship, but at the end of the day that's still my mom. My mom decided to send me one of my favorite meals.... As soon as I microwave it here comes my dad!! First thing he does is open the microwave to see what I'm microwaving?? (I already took it out btw) Like let me eat in peace smh.... I hide and eat my mom's food because I don't want to hear him sh*t talking my mom's food. I'm pregnant... Let me enjoy my food in peace omg. I love my dad but it's so hard having a conversation with him because everything coming from his mouth is negative.... I dealt with depression and stressed before and during my pregnancy.... Don't stress me out even more then I'm already am. So a few weeks later I gave birth to my daughter Sarae?? I come visit my sister's house and here goes my dad yelling the top of his lungs in my daughter's ears and omg?? yoooo I really was heated... I told him to shush because she was sleeping. Literally the first day at my sister's I sleep in my nephews room... He bust open the door and switch the lights on 12 am at night yelling saying ayyyyeee!!!! while Im breastfeeding. I told him that I was breastfeeding and then he walked out? I literally left the next day to stay with my boyfriend. Now I'm back at my sister's currently and my dad continues to try and wake my daughter up even after I tell him to chill. He literally wakes her up and then leave. Me and my mom has a tough relationship but my mom would still ask for permission to hold my daughter... My mom was more respectful with me and my daughter. My mom was so helpful as well and I am so grateful for her..... But my dad literally triggers me at this point. He snatches sarae from my hands after I said that I'm about to feed her real quick.... He disregards my request for him to stop. He doesn't even wash his dirty hands before touching my daughter. Since I'm back at my sister's for a few days he constantly keeps coming upstairs at 11am, 2am, 4am just to make noise upstairs to wake my daughter up??... Like go to sleep she's sleeping... Like why do I have to keep telling you that. It's like he makes it so hard to love him right now because at this point I want to stop seeing him completely.... But at the same time I don't, because I do feel bad for him. He is still bothered by him and my mom's separation.... He never really had a daddy and daughter relationship with me or any of my siblings when they were still together. So now that he moved in with my sister he feel more isolated from everyone ?so that's the part that I feel bad about... But the disrespect is driving me crazy. My dad finna be 70 on September and it's like the time is ticking of how much time I have with him....?so this is so frustrating!!! He is a immigrant so even if I did explain to him he will definitely take it in his own unique way if you understand what I mean and he is extremely hard headed so it's like I'm putting a point out for no reason.?ugghhh!!!

How do I wean my 2 year old from breastfeeding at night? I have tried everything, from dropping sessions during the day to decreasing how long he feeds at night. But he still wakes up 3-4 times during the night to nurse. This mommy and dad are exhausted