Endometriosis long term treatment?

I was diagnosed ovarian endometriomas on both side RO cyst size 3.6*2.8 CM & LO cyst size 6.5*5.7 CM taking Emersa 2 mg for 2 years continuously. Then, RO cyst size 1.1*1.7 CM & LO cyst size 2.7*2.4 CM. Then ceased Emersa for 3 months and got 3 consecutive periods without pain. Then usg report: RO cyst size 1.8*1.6 CM & LO cysts size 4.9*3.5 CM, 3.0*2.8 CM. Then again restart Emersa 2mg for 4 months and usg report: RO cyst size: 1.0*1.5 CM & LO cysts size: 3.0*3.4 CM, 3.6*4.1 CM. ( Size is decreasing) Now I'm unmarried and no plan to do marry for next 2 years. I heared that this hormonal medicine can not use for long term as it causes different types of cancer. As Already I have taken this tablet for almost 3 years, will it harmful for me? So what will be the next longterm treatment for supressing the disease upto desire pregnancy? Plz adv. Thank you 🙏❤🙏...