Sometimes he seems to be influenced by others (some say he fired people after Laura Loomer told him to, for example), but sometimes he seems to have ideas he thinks are great and he won't listen to people who disagree with him (although most people around him are probably afraid to disagree with him).

Is he doing this because it is what HE wants or what he THINKS the people who voted him want? or perhaps a mix of both?

What about Melania?
She even helped her parents become citizens using a pathway that Trump criticized:
Melania became a citizen of the United States on July 28, 2006. She then sponsored her parents using the "chain migration" immigration process that her husband later repeatedly criticized. Melania and Barron maintain dual citizenship, both in the United States and Slovenia.
Donald J. Trump
@realDonaldTrump
CHAIN MIGRATION cannot be allowed to be part of any legislation on Immigration!
9:00 AM · Sep 15, 2017

I know. I wonder how she would have felt about all this? lol.

She’s dead, Jim.
If you can’t say something nice, say something clever but devastating.