To achieve objectives one among other things has to know how one spends one time. Monitoring is key. If you are like me , you have several musical goals. Those goals are of different importance is the overall scheme of things. One way we give our goals different importance is by what we do and how much of our precious time we spend on a particular goal. Its therefore crucial if one is real about achieving one’s goals to measure what we are doing and how much time we are dedicating and then to measure that with how important we feel a goal is. If goal A is supposed to be 25% of your achievement basket then if you find that you are only spending 15% you then have a problem that needs correcting.
It comes down to if you are real you have to monitor your time so that you can reflect on how you spread your hours so that you can then correct. This is part of the what and when which is a big part of the equation , a big part of what it means to succeed in your musical goals as opposed to just pass time on your instrument. If that’s what one wants ok. But if not then monitor your time.
I used different approaches in the past. I’m now checking on Toggl, a free service which has a web app and counterpart Android and iOS apps.