I do agree, to make it better, you have to put effort in. Sometimes the effort is the hardest part. Even when it sucks and you can’t go on. No one is going to do it for you. Everyone kind of has to save themselves, a little bit or a lot.
The things (other than a great therapist and meds) that have helped me are
Exercise- not much but enough to feel alive and like I could run if the zombie apocalypse is happening
Eating and sleeping well, generally treating my body really well- I have medical issues so this is really important for me
Spending time with friends and loved ones
Spending time in nature
Helping others and being nice and friendly
Not giving a shit what most people think of me, and living my life for myself mostly. I think this comes with age for most.