ADHD/Depression

Does anyone else have depression that is affected by ADHD? I am the type of person that needs to always be doing something and checking things off of my to-do list but due to my inability to concentrate and have motivation to do things, I find myself to feel a lot more depressed and I often feel like i’m a failure. If anyone else can sorta relate to this and has any tips or advice please feel free to let me know!