I was also in my early pre teens when first studying this joke of a book. It was the same for me too. My 11 year old brain could not wrap its head around the fact that the most prophetic, earth shattering, trumpet blowing events were the conventions. It made no sense and just didnt feel right to me.
If i remember correctly the actual wording was something like, "happy are those who reach the 134 days", or something like that, and the WTBS had it fall on the exact days of the conventions.
Then they spoke about the "stinging" scorpion tails, or "bite" of the locusts, being the messages of the Watchtower magazine during the time of the end, exposing false religion. Its funny looking back now and seeing how the Watchtower magazine NOW, closer to the "end", has been reduced to an insignificant few measly pages of nonsense. The poison has been removed from the sting, thats for sure.
It was all complete and utter bulls&%t. I was actually long gone in my early 20s, when they came out with those "new light" supplemental pages to "paste and copy" into the mighty Revelation book. I knew it was bunk before that crap. Hearing about it after only reinforced that a made the right decision leaving the cult. I am lucky i got out in my early 20s, many been trapped for life.