^^ That must have made you think that if people with that kind of raw academic ability have the same qualification as you, then how could you stand out when up against them for jobs you've applied for? I can see how that would be frustrating and de-motivating to a degree
Obviously this time fortune shined on you fella as you got the job
I'm only 23 but I've been in the IT industry for over 6 years now. I went straight into employment after my A-Levels and avoided the Uni route, mainly because of the costs. I'm someone who likes to graft and stay plus figures where possible. At the back of my mind I was hoping the business environment experience would pay off and stand me in good stead, which so far, touch wood - it has. I've also done further training and certifications in that time too, but nothing to degree level so you've always got that at least. It's something that no-one can ever take away from you. The experience will come with time (obviously...) but coupled with a degree, that will bolster your growing CV.
As you say, now you're in the door you can liaise closely with the HR team and your line manager so that in time, you can make your intentions to work in the IT area of the business clear so they can ship you across should the opportunity arise
If they can't, at least you're earning money while you continue any kind of job hunt.