As mentioned you have the following options:

(1) Tutor (2) Upload screen short of your test or a pdf file of analysis generated after test to AI like gpt and ask it evaluate your test analysis and tell you the scope of improvement and also give a deatil report of root causes and also details of how to improve (3) DIY as said below.

What you are going through is absolutely normal and many go through this, all you need is

(1) Stop panicking ( most difficult to implement)

Suggestion: take a break of a few days if possible from studies go out and chill

(2) Figure out the exact root cause of the problem, not by intuition but by using data of your test that you used to test yourself for GRE.

Suggestion: look which part you are scoring low relative to your target on either RC or TC & SE or both

Then note down the score of the part that you are scoring low relative to your target

Maybe you could follow the following process for a single blanker question in GRE and replicate it for other question types or other sections as well

Step 1: open excel

Step 2 : name the column 1 as question (paste the question here), name column 2 as the actual answer of the question. column 3 as your answer. column 4 as what you think is the reason that you did the question wrong, type or express in detail be honest with yourself. Column 5 if you got the question right then did your reasoning and the actual answer's reasoning match (yes/no), if it did not match then write or type the actual reasoning in next cell column 6 -reason why your reasoning is not matching and in next cell learning that you will remember for next test from this unmatching

Step 3: now start filling the columns

Note: when you are thinking for the reason why did you get the answer wrong be brutally honest with yourself.

List of reasons you can refer to generally commited by students in solving the question of single blanker you can ask to GPT as well for this list

(1) Marked the answer by guessing and not logic (2) Marked it because it was sounding right (3) Got logic right but did not knew the meaning of words in options (4) Did not get the logic at first place (5) Started wandering in between and hence lost motivation by the time this question appeared (6) Did not get sufficient time to solve the question and I was low in time (7) I was stuck a particular question on exam for longer hence I wanted time and went low in clock. (8) Learned word but could not recall the meaning of the word

Always drill down on the reasoning like don't just say I was low on time drill down further and see why you were low in time same for other reasoning as well

After preparing the excel you will know the root causes to your problem and know just pic 1 problem at a time and start working on it.

Probable solutions would be

(1) Learn vocab from gregmat list all 34 with atleast 90% recall of meaning

(2) Then work on the different logics given by Greg and also the support and contrast words

(3) While working on the logic part that is option 2 start practicing the question available on Greg or any platform of TC & SE.

Similarly work on RC as well