I'm a newbie and thus started off with compiling my own kernel following this tutorial --> https://kernelnewbies.org/OutreachyfirstpatchSetup?action=show&redirect=OPWfirstpatchSetup

I'm able to successfully build and install the kernel on my native Ubuntu 20.04 and it also gets updated in the grub boot menu. But when I try to boot into that newly compiled kernel it gets stuck at "Loading initial ramdisk ..." and I'm not able to boot into it. Here are some things that I tried to fix this problems -

I waited for almost 2-3 hours after that to boot into the new kernel but it still showed the same message.
Then I tried changing the 'GRUB_CMDLINE_LINUX' parameter to 'debug' for checking the log messages but couldn't find any logs.
Some answers on Google about this said that it was possibly because Secure boot was enabled so I tried compiling and booting by disabling Secure boot but still same problem exists.
Then I tried compiling the kernel on a VM and it was successful and I could boot into it. But the VM makes the system very slow and thus I wish to compile and run the kernel on my native Linux machine.

What could be the possible reason and fix for this problem? Can someone please help me with this? I've been stuck on this for almost a week now so any help would be really great!