These general concepts apply everywhere, from work to physical training to any sort of learning.
1 – Show Up Consistently
Obviously nothing happens if you don’t put the hours in. Less obvious is that you must be a regular. There is a strong correlation between one’s ability in something and the amount of time put into it. Every session adds up, positively for every one you attend an negatively for every one you miss (and more than doubly so for consecutive attended or missed sessions).
2 – Be Conscious in Every Session
Just passively showing up typically brings about slow progress at best. The time put in must be quality time. By constantly and actively evaluating what you do, you find weaknesses and can work on correcting them (this is reminiscent of the scientific process).