Only praying 5 namaz cannot make you saint. The last line of your is silly.... it's like saying anyone can be a teacher then why do you need another teacher in other words a teacher doesn't need a teacher. We all can't be teachers and even Prophet Muhammad(SAW) had a teacher, Jibril(AS).
Yes Allah does listen to your prayer when you call upon him but there are ways of calling upon Allah. One of those way is to ask Allah through his pious people, dead or alive.
did i mention 5 times prayer? did i? u need a teacher? look upon prophet pbuh. enuf. teacher of all teachers! period. u need a school book open quran and read it. u want a examiner then allah is there. and try ur best gettign passed in that exam. and prohphet pbuh's teacher is allah not jibrail. jibrail was a messenger.
allah forgot to tell us about shortcuts i suppose.