Hi Bellina - Welcome to OB
I find my scotti likes things rather simple. I grow it with my catts - fairly bright light, warm tempts and fairly moist at all times. It likes to drink alot during the summers (who doesn't)
As far as RH goes, I'd be lucky to be pushing 50%, So I don't find it's much of an issue.
I have 3 lil nubbies on it now - this will be the first blooms for this one, hopefully during the warmer months.
My scotti is parked in sphag moss with large perlite, about 25%.
Good luck to you & enjoy your new orchid.
Happy growing