I used furniture polish on my rosewood table , now it is dule i think i ruined it what can i do?

Check to see if Johnnies still carries Hollaway House Wood Cleaner. Its a good waterless wood cleaner. It sounds like you have a build up from the polish. Use the cleaner and a microfiber cloth and work quickly to remove the build up.

Sorry..... can't answer this one.

I would say appy a coat of high gloss poly urethane