It's a day to day reminder. If you do not practice motivation every single day, you will lose it. And to stay motivated, you need to focus on yourself at first.
Accomplish one single task after leaving the bed. You can make your bed or exercise or make a cup of coffee. This work will keep your energy level maintained. It will give you the sense of accomplishment that will keep you motivated for the whole day.
The habit of being self-compassionate is another thing to do. We are compassionate to others. But we don't generally think of us. We can motivate others through our words, but we do not practice that in our lives. So being self-compassionate will help you look at yourself in the right way.
Take responsibility for your own life and the responsibility you have as being a family member. You can do small work, talk to your family, enjoy with them, and make your life easier. Responsibility is one of the keys to staying motivated.
You can read motivational things daily for at least 15 minutes. You need to give yourself time to keep your mind motivated.