Hi and welcome to MM LElaben
You are in the right place to get support. There is some good info on this site and a section on early &/or post hysterectomy menopause so do read up everything to get really clued up.
As you have had a hysterectomy you will just need some oestrogen to protect your heart, bones and keep the flushes etc under control. It's the progesterone part of combined HRT which tends to give the problems and you don't need progesterone because you don't have a uterus so, for you, it should be just about finding the right amount of oestrogen. I would suggest you try something like Oestrogel as it gives you the opportunity to adjust your dose to your needs. Many find using hormones transdermally much better and more effective.
It's tough coming to terms with this type of operation so do keep posting with questions etc.
DG x