Espresso Expertise [budget $400]

I am new to the world of making my own espresso, but after spending too much on “cutesy lattes” from out in town, I decided I too could make these myself. So I bought a bambino but haven’t opened it yet because I’m scared to hate it. I use to use a Keurig with a metal kcup and chose my own coffee, which I use lifeboost (it actually taste so amazing). But I am a coffee jerk, I genuinely care about the taste. I noticed a lot of people suggest getting a grinder, the only caveat is I only have the space for my machine (I rent and my roomie uses the other outlet for their machine), so if anything I’m leaning heavily towards a manual grinder. But what hand grinder should I get? I don’t wanna spend an arm and a leg but something that will be consistent?

OR the other question I have, lifeboost had an espresso ground coffee. Does anyone have any experience with that roast and think it makes a good shot? Also I think I should upgrade the tamp and get a bottomless portafilter. I really just don’t wanna hate this machine and want to love it as much as I love drinking espresso or lattes. I try to limit myself to one espresso a day, but sometimes I have two.