If you're absolutely set on not returning, make sure that both the uni and SF know before the start of the second year. You can go to uni at any time in your life - it isn't a one-shot deal. If you leave before your second year, you will still have enough SF entitlement to do a new degree from scratch later in life, if you ever want to.
I crashed & burned at uni immediately after school and swore I'd never go back. However I did - when I was 44. Had a great time, aced the degree and went on to postgrad. Just because uni isn't right for you now, doesn't mean it won't be in future. Always good to have an option open rather than closed.
Maybe taking some time out now might give some clarity about what you should be doing next. You need to identify exactly what it is about uni that isn't working for you, before you try again. Not sure there's anywhere which could guarantee a total lack of rah-rah hippy ****!