Hey, Chanel!
I'm glad the cheat sheet was useful to you. You can also find a flexbox one here I tend to get lots of migraines so I get how you feel. Don't worry and take your time. You're already following the best way to learn which is by building projects. I'm sure you will be fine.
Let me know if you ever need any help. It may take time but I always check all my DMs on Twitter :)