Burn out after exhibition

I am having this low energy state for 2 weeks. Yesterday, I could not do anything.And this appetite! I have had hunger for whole day. There were5 meal times．One thing I achieved yesterday is going to psychiatrist and talk with her.I felt physically tired and mentally exhausted. I ate a lot and that made me dozy.Time passed super fast and I spent 3 days living like that. This can be called "burn out", or "fatigue". Apparently, exercise and good sleep is essential for recovery. OR, this is just a low state of bipolar.

Anyway, I do not have motivation for anything. It is reluctant to go to Finnish course.I have not done my tasks. Yesterday, I was invited to the friend's house for dinner, but I could not wake myself up for that. My self worth is a bit low and I am malfunctioning. This is predictable. After a big amount of stress, it is understandable that i am in this state.

The question, or the task I am tackling now is what should my life be. After the exhibition, after tax report, after the university application, what does my usual life look like?

The question rises every time after something big finishes. I go into the state of apathy and binge-watching, eating like live stock. Life become so blunt and somehow not satisfying. I watched a lot of youtube videos, movies, series and porn on the internet in this period including the past. Only few thing is truly satisfying. I watch them and let myself bathe into all those enormous amount of meaningless contents for what? I sense the need for relaxation, and being passive is what I choose to do when I want to relax. The lesser the mental labour, the better relaxation has been my dogma.However, it does not feel like relaxing when I am doing such kind of activity. I just feel very tired and bored. I feel the guilt. Feels like I am ruining my creativity and intelligence. I feel like i am betraying myself by living like this. Good relaxation happens, when I somehow encounter the good movie or series that I can actively immerse myself into it. Also, light load of work is good.

Ideally, I should not have this type of burn out phase. I would like to have routine and consistency in professional life.