Moving is never easy, my suggestion would be to make a note into the profile of the old account pointing to the new, continue posting off the 1st account with motivational quotes and the likes.

Secondly I would make a footer where you can mention your new profile name for a few months and try migrate followers to the new by letting them know where the new profile is.

Do similar with the new profile to cross link and then decide the next step.

Moving the SBD or Steem would most probably be easiest to transfer directly from one account to the other.

Steem Power movement is a balancing act since under 500 you don't have slider for posting, you have to wait 7 days to remove delegation. Perhaps research further before starting the SP move and good luck.