I feel the exact same way at times I try my best or if I don’t I try to make peace with myself and try to to motivate good habits. You’re not alone, there aren’t answers for what’s the best way you should live your life but there are healthy choices a lot of us can make and even when we think we’ve given more than we can take, it’s up to you to decide how you want to approach life. I’ve lost a lot of care due to depression and anxiety as well as addiction but I’m still grateful to be able to pursue what I want each day.