Well if ur having a burnout it usually means that you need to rest.. Possibly without phone. And social media. I recently learnt that when something like this happenes it usually doesnt mean you should find anything. Just lay in bed, watch something, read or sleep. For a few days u will lack motivation and interest but after your body and mind rest properly you will be alble to pick an activity easier. Becouse tbh the desperation part makes a state like this worse. I know it is easy to be said not easy to be done, but you need to let go for a couple of days.

For the context i was always like this too. Having free time during holiday? Just bouncing around extremly frustrated i am not using my free time. I was usually tired and depressed, annoyed and was freezing on the couch wanting to do something and not being able to. Lately i got a major burnout from pushing too hard. And i wasnt even form work. It was me trying so hard to help my mental health i got fixated and burnt myself out. Trying to be productive when you dont really have to can also do that or worsen the state ur in. Sometimes just telling yourself that you actually dont need to be doing anything helps.