Growing vanilla... help!!

[Vanilla]

Hello, I'm brand new here!

A bit about me...
I've killed a few orchids, , and had some great success.

My new adventure is trying to grow a vanilla orchid!!

It is a Vanilla planifolia and it is about 6 inches long.

I've read through all the vanilla threads that I could find here and got tons of great info... thanks!

I'm growing it in a sun room off of my house. As suggested in the other threads, I planted it in african violet potting mix.
It is in a terra cotta pot that is about 12" across. Would bigger be better?
The sun can be very intense in the sun room, should I shade it?
How about humidity. Should I mist it? Should I mist it with orchid food in the water?

Any other advice? I really want this to work! Some of your pictures are soooo amazing and inspiring!!

I live in northern California, if that makes any difference.

Thanks for your help! keeping my !!