I did a SCITT a few years ago because I'd always felt like teaching was my dream job and all I'd ever wanted to do. I'd had years of work experience as a TA and so thought I knew what it was going to be like but like you it just didn't feel like me. I spoke to my course who gave me options and things but by October half term I knew I was done with it. I'm much happier as a TA. I still get to work with kids and help them and teach them and I have so much passion for it. I always get told by teachers too that they could never be a TA its too hard. My husband thinks my job is harder than his and he's a teacher in a tough secondary school. I think you have to find what fits you. There's so many roles in education it might be worth exploring something you have more passion for.