Learning to Drive gives me anxiety

So I'm currently learning to drive and I feel like a tiny fish in the ocean. I have my 1st official practice session tomorrow and I'm so nervous. Today I did a session with my dad and I freaked out and he yelled at me...he then apologized LOL. I'm terrified but I know as I learn and gain experience, it'll become easier like anything else. Can I get some tips on how to relax? Thanks.