Hi and welcome to MM Katybug
I would definitely try oestrogen patches( Estradot seems to be the most popular patch) or Oestrogel (sometimes called Oestrodose), as using oestrogen transdermally is usually better. Side effects can be greatly reduced and you can control dosage far better.
Here is the link to the page on this site that shows your options:
https://www.menopausematters.co.uk/treatafter.phpYou might need some testosterone as you are quite young - worth asking your gynaecologist or menopause specialist about this.
HRT alone won't help low mood - you may need a range of strategies to keep the mood OK. Do try Mindfulness, a good exercise regime that works for you lifestyle and make sure you are getting enough vitamin D, Omega 3 and other feel good vitamins and minerals.
Keep us posted about you progress. DG x