The more elaborate your plans are, the more parts that you have to move to do it. If you keep things simple then you will have less you need to juggle to do it.
The less you have to do the less stressful it will be for you. And those around you will benefit from a stress-free you.
If you want to simplify your life you got to keep things simple.
Don't take on more than you can handle. If you can't do it then simply tell them no I can't help.
There is nothing wrong with giving someone an honest no. Know your limits and stay in your limits for your overall well being.
Just keep things simple. You will be less stressful if you have less to stress about.