Day 1 is obviously too early to tell, but something to bear in mind -
Having been through a chemical menopause for a month or so with no add back HRT, I found that with no hormones I had immense hot flushes. But, absolutely no sweats.
However, outside of chem meno I get sweats at times. So I can 100% conclude that night sweats are changing hormones, for me. Not low E. Whether they come with high E, I'm not sure.
In terms of estrogen dominance - It is certainly not a medically used term...in the UK. But other countries routinely prescribe progesterone only in early peri, as this is the hormone to decline first. It's mind boggling that it doesn't happen to British woman - but there we are.

So, basically, keep going but keep an open mind and monitor your symptoms.