No, it’s definitely true. Other things can be true as well, of course.
But if you’re not accomplishing the things you want to accomplish you should deeply consider the possibility that you’re lying to yourself before you accept that your circumstances are at fault.
For some people, yeah. For others - you don't argue with a an attack of crippling headache, you lie paralysed in a convulsive spasm, waiting for it to pass. And then you remember that you perhaps should rest more.
But if you’re not accomplishing the things you want to accomplish you should deeply consider the possibility that you’re lying to yourself before you accept that your circumstances are at fault.