Here are some reminders I go back to when I feel down or discouraged, and I have things to accomplish:
1. Sincerity and commitment:
These 2 factors in itself should be behind one's motivational drive. Your sincerity and commitment could be to your kids and family, to your job, to a good consistent deed that you are trying to keep up with- it can be anything. But the most important is sincerity to Allah SWT and commitments to your duties you do for His Sake. For example, you just started on a physical fitness program. You are driven by the fact that you have to lose 10 lbs or so, in order that you will be able to fit into that dress that's been hanging in your closet for a while now. This motivation could drive you for a while- either you become successful in losing these extra 10 lbs and then you quit caring about your physical fitness, or you become like the fox who decided that the unreachable grapes were sour anyway (you give up). But if you are focusing on your fitness so that you can become a better person for the sake of Allah and for accumulating more for your aakhirah, then you and I will be driven forever bi idnillah.
2. The right kind of tawakkul and dua = giving your best effort + relying on Allah SWT for results + optimistic about whatever comes out is from Allah and Allah knows best, and is the best of planners.
3. Get yourself prepared to face challenges and obstacles. Don't expect everything to go perfectly- if it did, you wouldn't savor the sweetness of what you have achieved. Hardwork and sweat gives you satisfaction at the end of the day.
4. Believe in yourself even if nobody else does. Don't expect support and encouragement always. Sometimes, even the people you love and turn to the most, can fail you. But keep going, for the sake of Allah.
5. Seek advice from people you know can guide you. Keep company who can benefit you.
6. When you face difficulties, remember to ask Allah alone, and again remind yourself- Allah knows what is best for you.
7. Think of great people of the past whom Allah is pleased with. (May Allah make you and me from among those with whom Allah is pleased.)
8. Laziness will just make you depressed afterward. But if you have been lazy or made any mistake, forgive yourself. Learn from your mistakes- don't allow your mistakes to cling to you like leeches and take advantage of you.
9. Eat well, Sleep (rest/relax) well and play well(have a physical activity other than regular housework).
10. Accept criticism with a good heart....Ok, don't even consider them as criticism, see them as opportunities to learn from, ponder...if it doesn't pertain to you in anyway that you can improve, forget it. Love everybody. Forgive and forget. Be happy. Be positive.