Obese, Dieting, & Trying to Conceive

Ladies, I’m just going to be real. I am very overweight. I have been dieting for a couple months and it’s been a slow process. My question is.... do y’all have any tips or recommendations on what I should be doing, eating, not eating, or whatever to conceive? My husband and I have been ttc for 2 years now. Last year we finally conceived, unfortunately that pregnancy ended. (Ectopic) Ended up having to take methotrexate. And here I am a year later and nothing. It’s just so devastating every single time AF comes. Any tips, recommendations, or encouragement is welcomed.