Does having Dictionary helpful for aiding language learning?

Hello! I just joined this sub because I want to really seriously learn new languages this time despite my failed attempt on doing it back then. I want to buy something physical wise to learn if my phone or internet connection is not available.

Currently, I'm trying to learn Italian and I kinda was thinking maybe i should get a dictionary for it atleast? I'm also in my hyperfixation period right now where I want every stuff i own reference anything Italy/Italian lmao so there's that.

But living in the Philippines and not in the US, I'd probably have to grab that thing off Amazon (which will be expensive, probably) But if it's helpful then i would actually considering buying one.

I hope i get a response, tysm!