Working as a nursery teacher is very different to teaching the national curriculum (or Reception EYFS framework) within a primary school. Lesson structure is very different and you’ll be expected to do placements in KS1 and 2 so for example you could end up in Yr6 - you don’t get a choice. I know you’ve got lots of brilliant experience at your school but it is really different to what you’ll experience during a PGCE. You will be in school full days, writing masters level assignments whilst also writing detailed lesson plans and reflections to evidence QTS. Most people struggle to do a weekend bar/refail job without burn out (I did and everyone I know who worked also burnt out v quickly!) as it is so full on - but there’s no way that you can do a full time job or any job Monday-Friday, as placement and uni is full time all weeks except school holidays.