I just want my husband to try a little....

we have been ttc for 6 months with a miscarriage in june. I just feel like I am more invested in the process (like alot more invested) he 100 percent wants a baby, wants to be a dad. But he smokes weed every day. he has trouble sleeping without it and it helps with his anxiety do I dont usually have an issue with it. but I just feel like I'm working so hard to be healthy, cutting caffine, exercising, I lost 60 pounds before starting ttc. I go to doctors appointments have had countless blood draws. he works in the city so it's hard for him to come to appointments without taking time off but I went to the ultrasound appointments alone. I just had a follow up ultrasound from the miscarriage I swear he forgot about it....I just think that it's been 6 months and it couldnt hurt for him to eat a little better maybe cut back on the weed and beer. he is by no means lazy or a pothead he works every day is very responsible loves me to death hes my best friend. but like how hard would it be just to make some small effort?? I just want to feel like I'm not alone in this!!!