It’s a tough question because there are some things currently in my life that I have great difficulty accepting. The best way I’ve found of dealing with things is to focus on things that I actually can control - even though some things are difficult for me and can’t change, I can still choose to improve my circumstances in other ways. I try to have hobbies and keep improving myself, so at least I can feel good about that, and celebrate small achievements.
I also try and not be too hard on myself if I’m feeling low about things. Things like grief, heartbreak, betrayal, family problems sometimes bubble up in my mind and make me feel terrible about things, some days much more than others. I find it helps to just sit with the feeling saying “this feels bad” and “this will carry on feeling bad”. Acknowledging the feeling and sitting with it for a while, helps me keep going.