First time pregnancy… car seat stroller and breastfeeding questions

Hello I am 18 weeks and have so many questions I feel lost on. There are so many out there how do you pick!? We want to stay affordable.. my friend got her family to get the Nuna but I would never want that as they are over $900. How do you choose car seat/stroller? Just want to know the must haves… also planning to breastfeed, hoping I will have a supply. I know my cousin said she literally had none. If I can I was wondering I have been seeing colostrum collector tube sets and wondering what is this for and how to go about breast feeding? Which pump? I heard your insurance will give you a free one? Worth it or get your own and which? Thank you! Sorry for all the questions! I’m trying to look at baby shower invitations, registry stuff, thinking about the nursery, I’m behind on my baby journaling book and need to catch up, and it’s all so exciting but a bit overwhelming too especially with holidays coming and my shower will be January and baby is expected God willing early March 2022!

Thank you!!!