Endometrium 12mm thick heavy bleeding.

From the past 2yrs I have irregular periods. From past 5 months heavy bleeding. In ultrasound, my endometrium thickness is 12mm in march2024. I have taken Sevista 60mg tab for 3months course. After completing the course it was ok. But when I got periods on feb22 2024 heavy bleeding. On doctor advise I started Meprate 10mg tab from March2 2024 for 20days. On March 31 period started with heavy bleeding and from 20th day I have taken Maxogest10mg tab( in absence of Meprate) I missed the fose on 22April . Next day I got periods, I continued the remaining tablets But today I.e 3rd May 2024 is 11th day. Still I sm bleeding with clots 2 to 3 times in a day. Please guide me and let me know is this the stage of Pre Menoupause. Thank you