@derechhamelech
My only argument is that one needs to consult today’s Rabbonim. The commandment to listen to Talmidei Chachomim applies to all generations and one cannot say “well he isn’t as great as the last generation’s gedolim.” So you can bring all the proofs you want, but at the end of the day you need to ask your Rav.
I actually asked one of my Rabbeim about that R’ Moshe today and he said R’ Moshe had two notable exceptions 1) if you wouldn’t be learning full time anyway ( you just physically and mentally cannot), and 2) if you are unable to make a parnassah. He said there were definite exceptions to those exceptions, such as if you will be forced to taking philosophy-type classes which spew apikorsus or if you will be involved with girls etc. Really each case needs to be taken separately.
Anyways I sincerely wish you much hatzlacha and hope you will be able to learn ad meah v’esrim without any distractions. Tizku lmitzvos.