Improving like this is a lifelong journey isn't it? With steps forward and back.
Things that have made my life better are:
Marie Kondo and the associated way of thinking: only having things that bring joy, through aesthetics or function (getting rid of the niggles of dissatisfaction) and getting organized and getting the flow right for us (eg in my house, shoes and socks by the door so we can put them on our bare feet as we go out. Perfect for us). Getting rid of dead weight material possessions. Living lightly on the earth. Realising how little I really need and not getting tempted by the consumerist nonsense. But when I do buy, getting the pleasurable good quality stuff. I love my nice bags.
Doing yoga or exercise first thing in the morning, before 7 am. After that I am into morning routine with the kids. I had to get into this to recover from surgery but it is so worth it. I get grumpy now if I don't get it. I generally don't feel like it when my alarm goes off, but I just have my exercise clothes hanging on the end of the bed, shove them on and go do something off YouTube in the front room. As little friction as possible, and my shower is my regular morning shower.
Going to bed early If I'm tired.
Addressing my menopause symptoms, and taking my pills including vit D.
Buying all the little tools for the kitchen. E.g. 3 Tongs in the style I like.
Getting my personal finances sorted. Big job at first, but now it's only small work every month. But background anxiety much reduced.
Wearing shoes with supportive soles.
Finding a hobby I like and deliberately carving time for it.
Making space for my spiritual connection and practices. This brings meaning to how I move through the world, and what I give mental space to.
Ensuring I meet my needs eg for time to do xyz. Being vocal about these and (nicely) pushing for these to be met. I don't ask much (see early exercise and hobby) but do I do expect my small reasonable requests to be met. My "request rights" aren't used up with doing the shopping, laundry and other tasks for the entire family. I support them all in their stuff, it's OK to ask for that to be reciprocated.
A lot involved shifts in me more than anything else! Doing that internal work to "be" as I want to be.