Hey mate. Cheers to taking your first step on this journey. The pay off for you and your growing family will be huge and worth every step you take down this path.
Here is the most important piece of advice:. Talk with medical professionals and get them in the loop for your journey. Get checkups, talk with nutritionist, speak with a therapist about AFRID and find someone with experience helping people get into shape that are big like you and I. Reddit is a great place to find a community or stop by for a rant, but a poor place to look for life advice.
You deserve a fighting chance at your best life. Start with your general practitioner and ask for referrals. This is possible. You can do this. Things will get better.