Maybe you've read all the books and nothing has really worked, and you've already secretly started to wonder if there is something wrong with you as a parent - or you're worrying there might be something wrong with your kid.
KNOW THIS: IN ALL OF THE HUNDREDS AND HUNDREDS OF FAMILIES I HAVE WORKED WITH I CAN TELL YOU THIS IS ALMOST NEVER EVER THE CASE.
Almost always you are both GOOD, and FINE, and CAN THRIVE.
The real problem is this:
You are lacking pertinent information, that for some reason we as a society don't give parents. (Be honest: you probably got a better manual for your last Ikea bookcase than you did for your kid.)