Hi, I'm applying for a visa from UK ( I'm Polish but live in UK).

I know I need a return ticket when applying but do I also need accommodation booked for all nights of our stay ( 2 weeks)? I haven't got an exact plan what I want to visit so haven't book my accommodation yet.

Also, I'm self employed and I also study part time- do I mark both answers in current occupation? and in education do I mark postgraduate if I am correctly studying on a MSc course?