Simply put, the Quran in the context of 2:170 describes those people who persist or want to persist with an act or belief that they have received from their ancestors but is not a requirement in the teachings of Allah. They want to follow what they have been taught when it is not revelation.
You have not demonstrated the acts required fro the prayer ritual from the Quran, so are following what you have been told to follow.
2:170 When it is said to them, "Follow what God has revealed", they say, "Nay! We will follow the ways of our ancestors.” What! Even though their ancestors (and the ancient Imams) were lacking in understanding and were not rightly guided? [5:104, 10:78, 11:62, 11:87, 21:53, 34:43, 38:7, 43:23. Hudan and derivatives = Prominent = Bright = Lighted = Clearly visible = Leading = Guidance = Lighthouse = A well-lit road = A landmark of identification in the desert or sea]
2:171 The likeness of such blind followers is that (of a herd of sheep) which hear the shepherd’s call, but hear in it nothing more than a sound and a shout. Deaf, dumb, blind, for they do not use their reason. [This is subhuman level of existence 7:179. ‘Unq = Shepherd’s call. Shepherd here pertains to religious leaders who have learned some meaningless words or tenets, and a herd of sheep is the masses that blindly follow them. Kufr embraces blind following in addition to denying, opposing, or concealing the truth. Perceptual senses alone cannot distinguish human beings from the rest of the animal kingdom. It is the intellectual analysis that sets them apart]
6:148 Those who associate others with God say, “Had God willed, we would not have practiced idolatry, nor would our ancestors, nor would we have prohibited anything.” So did their ancestors argue falsely until they tasted Our requital. Say, “Do you have any certain knowledge (that the human being is created without free will 18:29, 76:3, 90:10)? If so, produce it before us. Nay, you follow nothing but conjecture and you only run after guess-work.”
6:149 Say, "The most powerful reasoning, the final evidence, is with God. If He willed, He could have made all of you innately guided” (like rest of the creation that spontaneously follows Divine laws). [16:49, 41:11]
34:43 When Our verses are conveyed to them in all clarity, they say, "This is only a man who wants to divert you from what your ancestors used to worship.” And they say, “This is nothing but an invented lie.” They who disbelieve say of the truth when it reaches them, “This is nothing but an obvious magic."
34:44 But We never gave them any Scriptures that they study, nor did We send to them before you any warner.
43:24 He said, “What! Even though I bring you better guidance than that you found your ancestors following?" They replied, "We deny that there is any truth in what you are sent with.”
43:25 And so We requited them. Then see the end of the rejecters.
43:26 And when Abraham declared to his father and his people, "I do free myself of what you worship.
43:27 None (shall I serve) but He Who brought me into being, and He is the One Who will guide me.”
43:28 And he left an enduring lesson for subsequent generations that they may seek inspiration from it. [Take a firm stand against blind following]
43:29 Nay, but I allowed them and their ancestors to enjoy life until the truth should come to them through a Messenger who would make all things clear. [Them = The people of Arabia. Previously, they could freely enjoy life without any moral obligations since God does not take people to task before He has sent a Messenger. 6:131, 21:44]