I tried using verbal mountain on gregmat and I reached the 2nd group. I am not able to get half of the word meanings on the 2nd group due to which I am not able to proceed. what do i do?

Went all the way down to san jose prometric centre while on vacation in the bay to take the GRE since i didnt want to do it online. Arrived and was immediately told to go home and reschedule it because the system was down and at 5PM ET everyone in the office goes home and is uncontactable. It was a 2.45PM PT exam, so my entire day was wasted. I was told to just do the online version instead.

Previously when i did it online, there were 30min of system issues precluding my test which impacted my focus. So well, there's no winning.

Hi, I currently have a decent vocabulary of 1,200 words, provided by a private tutor. The list was a mix of Magoosh, Gregmat, and ETS GRE Vocabulary Flashcards. However, when I took my actual exam last month, around 60-70% of the words in Text Completion and Sentence Equivalence were unfamiliar to me, and I scored 145 on Verbal.

For my second attempt, I want to prepare my vocabulary more effectively. Could you please suggest some good vocab sources?