Best weight loss tips

What are some of your best weight loss tips? My husband eats horribly and refuses to try anything that’s healthy which makes it so hard for me to eat healthy when I can’t just cook one healthy meal because he won’t eat it.. I can’t get much exercise in because I have a 3 year old and 3 month old. I’m 155 pounds and we haves cruise coming up in February and really want to lose my 30 pounds before then... Help