I need advice *moving out for first time*

Im 21 and in 5-6 weeks I'm moving out of my parents house for the first time ever. Not just across town, but to a completely different state nearly 800 miles away. I'm so attached to my mom and we have 4 dogs that I will miss so dearly. I actually cried this morning cuddling with 2 of the 4 dogs.

My 25 year old sister and dad live here as well and I know I'll miss them too, just not right away. It's going to be so hard leaving. I'll be moving in with my boyfriend of almost 4 years. My best friend of 5 years lives just 10 minutes away and I'm so sad I never took advantage of that and spent more time with her.

How did you cope with moving away for the first time? I know I will talk to my family every day once I get home sick. I grew up so sheltered and I'm going to be an actual adult for the first time ever. I'm so excited, but so scared at the same time