Letrozole

I just took my first letrozole pill. I’m 23 with a 6 year old son, I’m with the same partner I had my son with. I was on depo shot after having my son up until August 2017 when I got my last depo shot. August 2017-September 2018 I didn’t get a period at all, I figured my body was still adjusting. Then September 2018-Now I’ve had a “period” every other week with no ovulation. I talked to my doctor a few weeks ago and she prescribed me letrozole. She has high hopes as I have conceived and had a baby before and I’m with the same partner. I am so nervous and excited. I got started on 2.5 mg, starting cycle day 3 for 5 days. Is there anything I should know? Any success stories? I’ve been waiting 2 long years to give my son a sibling and I’m so excited that I’m finally on the right path, but also terrified of it not working. Wish me luck!