Just one? Look after your mind first, and then the rest of you. You can eat all the vegetables, and do all the exercise, and use all the best skincare, but if you’re not happy in your mind it makes every aspect of life so much harder – and makes it harder to look after those around you.
So, you first, and your mind first of all. If you’re struggling, get help. The stigma around discussing mental health issues is fading fast, thank goodness? and there’s a lot of help available if you look for it.