How to get things done professionaly at work when I'm very depressed?

From my experience with depression can be really hard when I am in college I just try and put it out my head if that doesn't help I speak with a teacher about how my moods are making me lose concentration in class then they will find a way to help the situation hope this helps you

Take the time to let your colleagues know you are having a rough period and this may affect how you interact with them. It doesn't have to be about specifics, just that your behaviour/attitudes might be different. Focus on the positives you've achieved throughout the day, rather than focusing on what you have not achieved or what you could have done better. Take your breaks seriously - practice mindfulness exercises in a quiet spot, if possible. If not, try use deep breathing techniques throughout the day to help manage your emotions and how you respond to different people and situations.

I like to put on some music from a video-game to help me focus on work when I'm depressed. Game soundtracks are designed to keep players engaged, and I find it helps keep my mind clear while I work. I find some animated movie soundtracks (Ghibli movies especially) also help with work or studies. Another thing I find helpful is to set small goals for myself along the way. Have a huge project due and feeling overwhelmed? Break it down into the smallest possible steps and tick them off as you go. This helps me realise that a. The work isn't nearly as overwhelming as I thought initially, and b. The feeling of having multiple little accomplishments helps me feel better about myself and my capabilities.