TTC for 2yrs-possible endometriosis? ARGG

Hey ladies! So, my husband and I have been TTC for almost two years now. I am 25 and he is 29. Recently had a missed miscarriage and I have pretty well diagnosed myself with endometriosis. Went back to my gyno last week to discuss. I felt like she dismissed me and didn’t take me seriously. During period and ovulation I have cramps so severe I cannot stand upright. I am super worried about not being able to have kids. Any advice?