I'm an accountant!! You do need to have a certain mentality lol.
I finished school after A levels and went straight into private practice at a local firm of chartered accountants. IMO this is the best route and would not go down the uni route. There is plenty of scope to get vocational qualifications, eg AAT is the first and most common qualification. This can then open the door to further qualifications such as CIMA.
The AAT can be done as a half day release or evening course.
I was in practice for nearly 15 years which gives you a fantastic spread of knowledge in bookkeeping, accounts production, payroll, vat, limited company audits, personal and company tax.
I've moved out of practice 6 years ago when I became a motor dealership accountant. I love cars, I like sums, perfect combo!!
HTH