Hello,
Glad to know that you are seeking help, what kind of lifestyle changes you want, ask yourself: write them down on paper. Try to pick just one thing and stick to it for one week at least. Schedule your day, fill it with different activities which definitely will include household chores but include things that you have written on paper to bring lifestyle changes. Introduce a physical activity in routine, look into your interest area I am sure you must be good in something, all you need is to just motivate yourself a little to feel good.
Next Steps
For further help consult a clinical psychologist