Single mother just starting out. Need support!

Hello everyone! I have an 8 year old daughter and I have never been able to loose the last 10-15 that I'd like. Morw importantly, I have a congenital heart condition (3 open heart surgeries so far) so I really need to stay healthy. Unfortunatly, it also means that I cannot over do it. Excercise is getting harder and harder for me as I get older. I'll have to start out pretty slow. It is so important to keep my heart healthy so I can be around for many years to come for my little girl. I'd really like to find some people to help support me in my journey and keep me motivated. In turn I would love to help others stay motivated as well! I am 29 years old. 5'3" and weigh 142 lbs.