Hi, First accept yourself as you are. To avoid any health issue you need to take action by doing exercise as part of your routine. Initially you can join group activities such as yoga
or aerobics which will motivate you. It is possible to dedicate an hour in a day. Talk to a dietician who can help to help you with right diet
which will help you in the right way. Every time you feel change appreciate yourself and reward yourself. This will help to achieve the goal.