Need the support and the tools to make this work!

I've been on prescription weight loss medicine for almost 3 years. I have 70 pounds to lose and I need to find the tools to make this work so I can do the things my grown kids want me to do. I need friends who support me and can guide me and give me constructive criticism.
I want to show my 21 year old body building son that his mom is still young enough at 40 to keep up with him when we go places instead of him having to lag behind with me.
I just need to feel good again!