So some of the things that I can see I was not sufficiently careful about: (1) learning Torah. [However the meaning of learning Torah is more limited than what most people are aware of.. They think anything written in Hebrew about issues of Torah is Torah. That is not how I define it. To me Torah is limited to the Oral and Written Law. I.e, the two Talmuds and midrashim. [2] Lashon Hara [slander] . [3] Honor of my parents.
Some commentary on this can be considered a part of learning Torah. But nowadays things have gotten way out of hand. [In fact the very definition of Sefarim Hizonim [outside books] is books that explain Torah in ways not directly from the two Talmuds of midrash. That is openly how the Rif and Tosh define it. So math books are not "sefarim hizonim"[outside books] .
Also it occurs to me that the herem that was signed by the Gra ought to have been heeded just because of "faith in the wise" אמונת חכמים [emunat hachamim]. But also the more so since time has shown him to be 100% correct.