How is it wasting life? Maybe you got gurparsaad from a messed up Guru. Guru Nanak didn't tell me to shut and take whatever garbage is throw at my Guru. What are you talking about when you say Guru Sahib after leaving Anadpur to write tria chariters. Guru Sahib was busy fighting until deep into 1705, then Guru Granth was also written and a lot of parchaar was done. After that, Guru Ji left for deccan and there a lot of stuff happened. E.g. Raajshahi to Bahadur Shah, Khanjar attack and Shaheedi of Guru Ji. The writing date of tria chariter says 1696 or around there. Guru Ji had left Anandpur by that time? Was Anandpur alreayd destroyed by Mughals by that time? So the dates are messed up too. Shows that you have never read dasam granth and shows your lack of education.
Also, sitting in one place and doing mantar jaap won't get you gyan.
Gyan is received by reading and understanding Gurbani. Some people just don't have the capabilities to understand or apply Gurbani. Ain't their fault. All in power of Akaal. Dasam Granth mentions poets raam, shyam, kal, etc. Are they your Gurus? Have you ever read dasam granth and are you wiling to read and do aarth of it in front of your sister, or mother or daughter or wife with other sitting besides you? If not, then shut up or put up. How much simran do you do daily? What have you ever done for Panth? Do you teach your child about tria chariter about using dildos for lust and powders to remove hair. Maybe you didn't know but hair removing powder was first released in the middle of 19th century so it shows when tria chariters were written. You guys are asankh times worse than atheists. Go jump into sutlej and commit suicide. Who needs indra gandhi if we got dushts like you.