If you’re feeling depressed and lazy about getting things done, you need to improve your self-esteem.
This is because if your self-esteem is low, you’d achieve little and might even lose the things you’ve already accomplished. People with low self-esteem lack the will to carry on. For your job, your health and your loved ones, this is dangerous. You’d become unproductive, become sick and lose the company of people dear to you.