Just a little vent and tips on lengthening luteal phase?

I miscarried in October at 13 weeks. It was my third pregnancy and first time miscarrying. My progesterone was low in this last pregnancy i miscarried and my daughter’s pregnancy in 2020, but i carried her to term. We are now ttc again. But, I have noticed my luteal phase the last couple months is only 10-11 days and there is spotting around 8 dpo each cycle. I know this is a sign of low progesterone but i didnt have this before i conceived the pregnancy i miscarried. I just started my period today at 11 dpo right when i thought i could take an early pregnancy test. I just feel anxious that if i dont do something to lengthen the luteal phase i wont be able to conceive. Any women have this and what can you do to try to help lengthen luteal phase?