Brandeis v. UMass Amherst?

I got admitted to both and I am having trouble making a decision between them. (I plan to major in biology)
Brandeis was my dream school so I would love to go there but it’s really expensive. I did get some award but it wasn’t a lot. I will be “okay” going to UMass Amherst since it’s a great school and I will pay less. I don’t live in MA so I won’t get in-state benefits but UMass is still cheaper for me. I am not sure if it will be wiser to choose a state university that is cheaper or if I should just go ahead and invest in Brandeis. I’m scared of regretting my choice later; what if I choose Brandeis and regret about paying my debt? Or what if I regret about not committing to Brandeis after choosing UMass?

It seems like the most reasonable choice would be going to UMass but since Brandeis was my dream school, I can’t get it off my mind :(( What are your honest opinions about the schools?

What did you decide