Hi Talayva,
The ESR is very general in nature, and thus it is not a great tool to learn from. Nonetheless, it can help you answer some basic questions such as:
In which topics my performance was far better than others, and which require an in-depth revision? This is mostly important if you only have very short time to prepare for your next test, and would like to focus on just a few specific topics.
Are there certain specific areas in which I’m wasting too much time, and if so - in which other areas should I use extra time? For example, if Reading Comprehension takes you too long, but a few extra minutes would give you a lot more additional correct answers on Critical Reasoning, your test strategy should be to skip some RC questions in order to gain more CR correct answers.
Which kind of skills should I improve? Note that the ESR gives you quite vague understanding of what these skills are, but an extremely low performance on grammar-oriented questions or in CR inferring-an-idea questions is a great indicator of where you should start your preparation.
In order to give you more personal advice, I would need to go over your full ESR and have a better understanding of who you are:
How many times have you taken the GMAT? I see you previously got 750. Was this your first exam?
How much time do you have to prepare for your next test?
Are you a native English speaker or not?
Please attach your ESR in this chat https://bit.ly/2uVZt8q, and I’d be happy to analyze it for you.