Learning to read in person? (Intermediate reader)

I’ve been reading almost daily for about two years, but rely so heavily on the internet and my guidebook when reading. There are a good number of cards I can now interpret on my own, but some that I go blank on every time. I only provide written readings now, but feel like I’m good at piecing cards together that way.

I got an offer to read in person at a party and had to turn them down because I am so choppy in person and have a hard time differentiating certain cards off handely. I’m wondering what’s the best method for learning to read live? I already feel comfortable with a good chunk of the deck and a lot of the guides I’m finding on YouTube are directed at those who are starting completely fresh.