When the mental cloud of being idle comes and grabs your soul making you feel worthless, miserable and unprepared for a day ahead don’t think about yourself in a negagive way. Instead pull through the day by following a list. A to do list is a simple but efficient way of putting your day in order. It doesn’t need to be written down it can stay in your head ( if it doesn’t cause you mentally too much pressure). After ticking one task off the list you will feel a sense of relief and on the top of that you will experience a wave of relaxing sensation. The relaxing sensation derives from the fact that you have made yourself occupied with something else apart from your problems. Putting it in a simpler way you’ve given your mind a well deserved break and you are experiencing benefits of it.
The hardest part of it is to get going. My advice would be : GET UP AND GO, YOU CAN DO IT.