I can relate to what many people have said here. After I finished my PhD I became a PhD Thesis Coach as I realised that in the main most postgraduates feel undermined and not-good-enough - this is not true! I had three different supervisors who all in their own way decided to make themselves feel better by putting me down. One even used to suggest why could I not be more like another postgraduate who later I met and the reverse had been said to her! So, in short if you are lacking motivation and drive, feeling uncomfortable where you are at, or that the PhD idea was a wrong one - don't! Connect with someone who will give you a sense of motivation and belief in yourself with a structured approach on how to complete your thesis and get onto the next stage in your life! I got there and you can too :) If anyone wants to private message me please do.