no period / worried

Hi,
I'm 33 years old and still have a strong desire for a child.
We've been trying for a first baby for almost 4 years now... it just won't happen.
In 2017, we tried at least 4 times with Clomid and Pregnyl... negative.
But since January 2018, I haven't had a period anymore. I don't have PCOS.
After that, I had to take a double dose of Clomid in the hope that there would be a lot of follicles, but according to the ultrasound, there weren't any.
I was referred to another gynecologist who specializes more in fertility. And she came with very worrying news. It was a serious blow... very few eggs left and on the way to menopause. (I also have hot flashes)
Now, in early May, I went to the fertility clinic in Edegem for the first time... The gynecologist still believes in it, so I'm trying to hold on to that. Just the waiting... it sometimes makes me feel discouraged.
Are there any women who are going through this or at least have good tips or something?? Because I'm at my wit's end.
Greetings