Hadith & Sunnah is forbidden by Quran

I want to know this.

Why would someone like me need to know "how to pray"? What makes you think when the Quran says to kneel and bow and prostrate that the person would still not know how to pray?

The problem is that those of us who come from a Sunni or Shia background we are so used to a ritualistic and codified form of prayer that we really do believe how many raka's, and how we hold our hand, and how we move our body movements is the only way to pray. Its embeded in our minds. and we can not imagine any other way of praying. Many Muslims do not even pay attention when they pray because its routine for them. They say the same things over and over again. Many of them learn and practice this even before they reach puberty. WE then start to believe thats the only way to pray and there is no other way to pray. We ASSUME that we need to pray at certain times, in a specific set of way and then we assume thats the only way to pray.

Tell me what makes you think that unless you raise your hands and do takbeer, and then recite the faitiha and then at least three verses and then bow and say three times subhana Allah, and then raise your head again and then go to sujood and say 3 times subhana Allah and then lift your head, and then do sujood again and then say subhana Allah 3 times and then go up again and repeat the process but next time after sujood you must make tashahud to Abraham and the prophet of the Quran then you can never have your prayer accepted and you can never have any spiritual connection with God?

Why should God care about thats its two raka'a in the morning, 4 in the noon, 4 in the asr and 3 in the maghrib and 4 in the evening? Tell me why should it be like this when the sects themselves say the prophet and his followers prayed twice a day in Mecca? Did God accept their prayers then or not? Tell me when you around in the Ka'aba 7 times, does God accepts that or not? Tell me when you go to a funeral and your pray standing up and you don't do sujood or even bow, does God accept that? When you throw some rocks at some stone statue in haj, does God accept that? When you go back and forth from one place and another 7 times, does God accept that?

What makes you think there is a way to pray and why did not God tell us in the Quran that there is a way to pray and its the only way to pray?

Tell me why does someone like me need to know how to pray? If I left the Quran with someone in an isolated Island and the Quran is all he knows, do you think he would ask us after 10 years I couldn't pray because nobody showed me how to pray?

What makes you think that how the sects pray is the only acceptable way to pray?

Or let me ask it another way:

Where do you think the sects got their way to pray from? The 5 daily prayers, the rika'as for every prayer and their timings during the day and when to say it silent and when to say it out loud. Where do you think they got this notion from?