@Nana_Kh More important then your time is your Energy.
I mean that: it is far more important how you manage your energy than how you do your time management.
Less objectives but excellent attained is preferable than many with mediocre results.
What you need to do first is to decide which of your 'billions of things' is a priority. And go for that one!
Take time to rest , which replenishes your energy reserves. Take time to recreate, which also provides you some types of energy.
Also take in account that success in life is always an effect.