Knowing why you lose and how you win will show you your strengths and weaknesses. For example, if you play the opening well and throw away a game due to a tactic in low time controls then you need to work on time management. If you lose in the middle game then you might need to work on a common line you face often, know the plans for both sides in an opening. Once again, why do you win and why do you lose? This will show you what to study.
Areas of improvement:
1. Opening knowledge
2. Middle game knowledge
3. Endgame knowledge
4. Strategy knowledge
5. Tactical knowledge
Areas of improvement:
1. Opening knowledge
2. Middle game knowledge
3. Endgame knowledge
4. Strategy knowledge
5. Tactical knowledge