Getting too old now

Hi, I’m 37 and TTC for my first. Doctors say I have a thyroid problem and high prolactin which will affect my fertility. Only husband and sister know I’m trying. From the rest, I hear the usual “when are you having kids”, “you should act quick, not getting any younger”. Husband (already has a DS,6) and sister (has FS,12) are trying to be supportive “keep trying, it’ll happen” or “stay position and it’ll happen” which really doesn’t make me feel any better. I have a deep fear it’ll never happen but pretending I’m not bothered or worried. Just want to cry on my own sometimes.