You are doing a great thing for YOURSELF and for your FAMILY by making a step in the right direction to wanting to be more healthy!
Making a plan of how you are going to reach your goals, whether they are short-term or long-term goals is crucial. Being specific in how you are going to achieve them is also important.
Take your journey a day at a time. Once you know your Health & Fitness goals, then take the time each day to work on them. You will have good days and bad days, but be consistent and get right back up if you fall. Failing is ok to do, it helps you to learn and grow.
Do what you need to, to get in your workout, eat something healthy for the day.
AND THEN . . .
Celebrate your progress and successes!