Not sure whether you realise it or not, but there is a thread for people wanting to lose a lot of weight. I think it is called 200lb or 300lb club and it is in the top part of the support threads.
It's not that I don't want you to post here, you'd be very welcome and you can post on as many threads as you want anyway. Good luck with your weight loss journey. All of us on here are supportive and butt kicking and getting on with what we can do. You are starting out in a good place and 5lbs down is great. It's 5lbs you no longer have to worry about.
Good on you.