Welcome!!!!! I'm sorry your journey TTC is so long! But I know that IUI and IVF have been successful for many!
A cousin of mine had a child awhile ago by IVF after a few failed IUI's. I believe they said it cost around $15K initially, but since she has frozen embryos, she can conceive again for much cheaper. I'm not 100% sure on the cost and stuff though. I do know IUI is quite a bit less expensive and invasive since they do not harvest eggs. Might be worth a shot to see if that will work for you. Do you have any insurance? Will it cover any fertility treatment?