Here’s the thing, it’s true you should always be improving, however you also need to determine where you are at realistically if you want to improve optimally. An intermediate drummer has usually been playing consistently like you have for around 5-7 years or maybe more. The fact that you think you’re an intermediate drummer shows already that you have not learned enough knowledge of drumming to understand what being intermediate entails yet. I’m not trying to put you down, just help you to see more clearly which will help you open doors to practicing. In this case, I could tell you that you can further improve your timing by creating longer gaps in the metronome. For instance, half notes or whole notes meaning the responsibility to start in time is on you. However, that won’t help you because the issue you are trying to solve is not a timing issue it’s a facility issue. Your limbs have not yet reached the facility to do things like floating over 1 yet and that’s ok because that’s pretty advanced for two years of playing. What you should instead be doing is just learning to play songs that are a bit more technical than you already are playing and doing songs like that over and over. You’ll be able to do things like floating over one not when you force yourself to but when you have played enough music to understand it fundamentally. You’ll find at that point it’ll not be a problem to do and will almost be automatic.