The thing with junior developers is they very easily fall victims to trends, shiny objects, and decide what to invest their precious time into, based on what's popping up in their YouTube feed. That's how you end up knowing a hundred different things and mastering none. Which, in the current job market, which is insanely competitive, is the equivalent to a career suicide. Mastering requires focus.
And focus requires saying no. Senior engineers learned how to differentiate between signal and noise. And one of the key to this is to get rid of the chaos in your email inbox, in your YouTube feed and your social media. Simply limit your exposure to shiny objects, which are just trying to take advantage of your, you know, fomo, fear of missing out. Remember, the grass is not greener on the other side.
It's greener when you water it.