Moms with more than one child... how do you get through breastfeeding and take care of your other kids?

I have a month old and a 3.5 year old and I’m finding it extremely stressful trying to establish breastfeeding while taking care of my other child as well. I feel like I can’t give my 3 year old any time. My babies been cluster feeding like crazy and is attached to me all the time. How do you take care of your other kids, give them adequate attention and still breastfeed? How do you even put them to bed? I feel like I have to put the 3 year old on the back burner in order to keep my month old happy breastfeeding, whereas when I give her a bottle she’s totally content. Its making it really hard to stick it out. I feel like if I were to bottle feed it would be so much better for my older child. Any tips or advice?