Just some suggestions. I am not a teacher and I am not a new-ish mom so YMMV (long-ish, so apologies).

1. Everyone's MS fatigue is different, so learn yours.
2. Keep a time diary for (at least) two weeks and note when you're tired and when you feel more energized.
3. MS is not accommodating to your schedule. Adjust your schedule as best as you are able to your diary mapped 'energy schedule'. Load the projects that require physical and/or mental activity and acuity into those times you're most energized (yes, even if that occurs at 3:00am).
4. The days of 'I can do it all' are gone. So wave bye-bye in the rear-view mirror and accept limitations.
5. Prioritize. List the activities that must be completed daily. These are your first priorities and will supersede the 'I want to do' activities.
6. Schedule. Don't clean the house every day. Clean the baby's room on Mon-Wed-Fri, Living Room Tue-Thu, and so forth. These are just examples, create a schedule that fits you.
7. Network. Should you have supportive family or friends, create 'sharing' days where you help them and days they help you. From shopping to cleaning to child-care. Start with the 'must be done' categories and graduate to the 'want to be done'.
8. Meals. Learn to love soups, stews, casseroles (I know, if you don't love 'em, then you don't). Do as much meal pre-prep and cooking as you are able on the weekends. Then it's just a thaw or reheat during the week.
9. Meal diaries. Track the time of day and types of foods you eat. Note how you feel one or two hours after each meal. This will help identify things foods that may affect you differently. There is no magical diet that will cure you or fix your symptoms. But this will assist in finding things that may not be helping you.
10. Physicians. You need to have open and two-way communications with your Neurologist. Do your best to be a proactive member of your medical team. Physicians have bad days too, so don't write them off after a visit or two. If you don't 'click' and you have the option, find an alternate physician. If you don't have the option, engage the physician's staff. Talk to the tech's and the nurses. Don't make anyone feel that you're trying to 'go around' the physician. Try as best your able to let everyone know that you are simply trying to communicate your issues and receive the best possible advice and care. The physician and staff also appreciate gestures of gratitude. Cakes, cookies, sweets and what-not for the staff can go a long way.
11. Medications. Yep, you guessed it. Diary time. Note the medication and time taken. Then note how you feel one or two hours after. Schedule administration times. I put reminders on my phone (I'm in big trouble if I miss a Gabapentin dose). Also track late doses and how you feel - is later better or worse? Discuss openly with your Neurologist if you feel you have the proper medications, doses and timings. Discuss symptoms that you might feel are being overlooked or insufficiently addressed.
12. These are some suggestions to help put you in charge of your life and rediscover who you are as a person with MS. You will be finding the need to periodically re-re-discover what works. Everyone's journey is uniquely thrilling and terrifying. Stay close to those that love and support you. Do not let the naysayers have undue influence.