Tip #2: The Internet Is Your Friend
Never underestimate the power of a YouTube tutorial (or two). Choosing to box braid your hair on your own is probably one of the most difficult things you can do when you don't have experience braiding, but the occasional how-to video can definitely make things easier, especially since so many of them are beginner friendly. Plenty of these demos can teach you everything from how to part your hair and how large your sections should be to how to grip your hair so your braid is tight enough to hold.
Tip #3: Use All the Help You Can Get
Did I mention how hard it is to braid your own hair when you have very little experience? More specifically, the hardest part for me was parting my hair into clean sections, since I couldn't see the back of my head without using a hand mirror. I ended up making my mom help me out with this part, so in the event that you're at home with a family member or a roommate with a steadier hand than you, feel free to ask for help when you need it.
Tip #4: It's Not Going to Look Perfect the First Time
I went into this telling myself that I didn't care if my braids turned out looking professional or not — I mostly just cared about getting the job done, especially since it'll be a while before I actually have somewhere important to go. I'm no expert, but I think it's a good mentality to have when you're doing something for the first time with nothing to go off of except a few YouTube videos.