You ask "What are some of the things you do to manifest things while battling depression?" Perhaps you need to discover the cause of your depression. Otherwise, trying to manifest a happy life while struggling with depression seems futile.
I am a great believer that depression has its origins in suppressed feelings of pain and grief. Depression ends when these suppressed feelings are brought to the surface and fully experienced and released. Then we feel freer and lighter and we can focus more on manifesting the life we desire.