Great news about
your H.R. improvements! That must be such a relief for you.
...and yes, now to get the sleep improvement you need. You are taking the right steps, so know that with continued work toward management...and time, you will get there!
Go in with an optimistic outlook...and tell yourself it is going to be a success.
...and on the off chance that your first try isn't a go...know that many people have had to re-schedule and do make it the second try, due to the familiarity the second time around.
With encouragement!
S.C.