Learning full time is the absolute ideal, if money is not an issue, as the Rambam says in the end of Shmittah Vyovel…
?? [??] ????? ?????? ????? ????????, ????? ???? ????? ??????? ?????? ?????? ???????? ?????? ??????? ?????? ?????? ??????????
???????? ?????????? ??????? ??????? ?’ ?????????? ??????????? ??????? ??? ?’, ???????? ?????? ?????? ??????????? ??????????, ??????? ????? ????????? ???? ??????????????? ????????? ?????? ?????????? ?????? ???????–????? ??? ??????????? ?????? ?????????, ????????? ?’ ??????? ??????????? ???????? ???????????? ?????????; ?????????? ??? ????????? ?????? ?????? ???????????? ???, ?????? ?????????? ???????????? ??????????????. ????? ??????? ?????? “?’, ?????-??????? ????????–??????, ????????? ?????????
”
Granted this means not worrying at all about money, which requires an unbelievable amount of Emunah and Bitachon, and the willingness to literally place your life in Hashem’s hands (not modern Kollel Bochrim!), but this is the ideal.