Hello Aspirant,
First of all let me assure you that this is not particular to you. Everyone feel this way some time or other and best part is that you know what's wrong.
If time management is issue than you can do a thing, try writing what all things you do in your day and then analyse what unnecessary activity is consuming your time and then try to avoid it, not at once but day by day.
You can read some help books and practice some yoga and breathing exercises in order to feel motivated and optimistic.
Hope this helps!!
Best wishes!!
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