Hey turns out that if you let the device do its own thing, it will restart around 10 times first few times at around 30%, next few times at around 70%, eventually it gets to 100% and it came back ON!!
Im too scared to try anything thats shown in the videos or any other videos. The problem is my phone updating percentage keeps getting stuck at 37% and then it will again come back at 0% and eventually the percentage will rise again and go upto 25% and then screen will turn off after few seconds "Samsung galaxy m11" will show up and then this process will repeat...its been going on for more than 8+hrs and there is no progresse. And now that i remember i haven't backuped my pictures and videos because i didn't expected this to happen and this issue never happened with me in the past while updating my phone. The worst part is even if the phone is fixed all the data will be gone, anyways...if anyone is facing the same problem and have their issue fixed please reply.