How to balance hormone that causes heavy menstrual...

What hormones causes heavy period bleeding :
- general sexual hormones imbalance ( EST, PROGST,LH,FSH )
- thyroid hormone 
- secondary causes that cause hormonal imbalance such as : PCOS and uterine fibroids 
What is the treatment of your case ? 
first you have to  consult GYN doctor to do the needed routine medical test and determine the treatment pathways ( if needed ) , and the treatment options are :
- in case of hormonal changes , doctor may prescribe medication to correct hormones imbalance such as duphaston , which you should take a pill every 12 hours for 5 days  
- in case of thriod hormone abnormalties ( usually accompanied with other symtpoms ) , doctor will prescribe medication such as Levothyroxine
- in case of other chronic disease such as ovarian cyst ( PCOS ) or other disease , doctor may need advanced examnation to determine the causes and treatment pathway 
Needed medical examnation :
- physical examnation  ,  vaginal culture and urine test , productive system ultra sound  , hormone levels including productive system hormones and thyroid hormones