You need to have a long chat with your personal tutor at Uni. Just about every PGCE student has doubts at some time during the course about whether teaching is really for them (usually after a day with a difficult class and a lesson that went wrong). Most of these work through the difficulties, have better days, and carry on to successfully complete the course. However, for some people, withdrawal from the course is the right option. This should never be regarded as 'failure'. The PGCE is an educational experience - and the person being educated is YOU. You're finding out things about yourself, what you're good at, what you're not so good at. You're developing new skills. You're discovering what you enjoy about work (and what you don't). If, in the end, you decide that teaching is not for you that's fine - you've learnt something about yourself. Your tutor will have had dozens of conversations of this kind over the years and will be an effective counsellor, helping you to think and talk though the issues you face, and helping you to make a decision about whether your current feelings are a 'blip' from which you will recover, or whether teaching really is the wrong profession for you. Whatever you decide is fine - do what is right for you.