Just a potentially useful piece of advice.
The cut of dates for registration are rigid and different to other unis.
10th Jan is the deadline for feb start. There will be opportunities to start level 1 modules in April and probably Sep/Oct. The OU used to run most of its courses feb to oct and it has been transitioning to the proper academic year. Level one modules tend to be available for feb and oct and if you are lucky april and july starts.
Also pay attention to fee rules and registration rules. These used to be very generous and you could get full or large partial refund. In 2018 the rules changed again to be less generous.
If you want to chat to some OU students I would go on facebook.
Generally people spend months/years thinking about OU courses and not doing them.