Have you considered trying to get a couple of GCSEs, ideally English and Maths, under your belt first? It would offer you a reintroduction to education and allow you to get the GCSEs that are necessary for most universities. Although many colleges allow you do to such GCSEs alongside your access course.
Also, you may want to consider doing an access course part time. Some colleges do offer such a route. This would take two years but allow you to take a more leisurely route. It is also helpful if you have any work or childcare commitments.