TTC is breaking my heart...

I really just need to vent...

A few months ago, my husband and I decided to start TTC. I was actually surprised by how on board and kind of excited he was about it...or so he said. Our sex life has never been one of frequency (he is infrequently interested). After a few failed months of TTC (and not putting in near the effort I would like to), it’s just breaking my heart. Every day/night near and during my fertile window, I hope that he will be interested in BDing and most times he isn’t. I keep him informed of the importance of frequently BDing but that doesn’t help, either. So I go to bed upset and crying. Then after my fertile window, and limited attempts, I go through the dreadful TWW, only to be heartbroken again when I get my period. I know we haven’t been TTC for long, but this is already so painful for me. My husband is also slightly overweight, rarely exercises, drinks alcohol regularly (often more than he should), and smokes cigarettes. I feel so alone in all of this and I feel like, under all these circumstances, we have an almost zero percent chance of conceiving. 😭