That is literally THE WORST advice possible.
It’ll just make you jittery and destroy your brain functions.
@Brokenheartedgirl
Start a meditation routine check out the advice here. Meditation is what makes the difference between getting good and stagnation.
Also a helpful tip for having too many thoughts on at the same time is to just do a brain dump.
Get a piece of paper and write down everything that’s distracting you that you that comes up. Once it written down and acknowledged then it stops having power over you and you can start whatever it is that’s needs your full attention. When you do this it might take 5-10 mins at first but soon you’ll realise how irrelevant these distractions are and it’ll only take you 30 seconds to clear them up.