1)First of all share your USG report . There are various types of fibroid : if it is submucosal(0,1) : Hysteroscopic myomectomy is the best treatment of choice .
2)Otherwise if it is other types of fibroids : medical therapy should be started first if you dont want to conceive in coming future . It include Combined contraceptive pills which will decrease bleeding but it won't reduce size . For size reduction we can start another medical therapy also . If nothing works then hysterectomy can be done if you don't want to preserve your uterus and your family is complete .
3)Go get your Endometrial biopsy done as your age is above 45 and you belong to high risk category also complaining of ABNORMAL UTERINE BLEEDING so there can be endometrial hyperplasia ( which is trigger for Endometrial cancer so it MUST BE ruled out at this age ) . 2nd thing once you will be started on OCPs : it will itself reduce chance of Endometrial Cancer so it is beneficiary for you .
Next Steps
If you are satisfied with my advice and you want more of my suggestions : kindly consult me here on practo so that i can help you out properly
Health Tips
If your weight is more : reduce it to pre obese BMI .