“I understand that loving yourself has to do with completely accepting your thoughts and feelings and being compassionate toward yourself.”

Ok, so according to your understanding you have to live up to the standard of completely accepting your thoughts and feelings. And at the same time you have to be compassionate towards yourself.

Can you spot the contradiction? I think this explains why you doubt yourself. Seems to me like you’ve got this self-love thing down. Time for the next step: everyone else.