- Edited
Beginners who have a teacher tend to rely on outside help more. Many intermediate players would start to track their progress and be conscious their strengths & weaknesses.
Recently I showed a man a recording made 7 years ago of an old song from the 1940s. There is a big jump in the piece repeated a few times… from the melody to chords. No rest before the jump so need to land on the right notes immediately. 7 years ago I wouldn’t be playing many pieces with jumps but at least 1 piece was played successfully. The pieces you play may not get more difficult than the most difficult piece you tried but you’ll be playing more pieces at the same level.
Be aware of your mistakes and fix them like counting issues and missing sharps & flats. Other issues related to techniques depends. Executing a big jump, controlling dynamics, connecting phrases we may not be able to do yet.
Part of fixing mistakes is developing a good ear. This means not to take sheet music at face value even if we’re good readers. Over the years I downloaded pieces and would find spots that doesn’t sound right. 1 piece missing a flat on the D, another missing a flat on the B. Good readers would play the mistakes as is. Someone like me would find a recording online and hear the spots that don’t sound right. My weakness is reading. Being a good listener compensates my reading.