Hi,
So a lot of the worries you have are really understandable, and I can understand where they are coming from.
Firstly, I will point out, I am not a mature student, however many of my friends are and they are similarly worried. Many universities do lots of different social events during the "Freshers" period, from the usual social gatherings, to those designed specifically for certain courses, international students, mature students and disabled students. Here at Reading I know we do lots of these events designed to really support those with your exact worries.
However it is also worth remembering that people come to University for a lot of different reasons, and frankly many people do not mind. Personally for me, it was career development, others for the social life, others for their love of learning and those who simply wanted to put off being an adult! For you these are likely to be different. But really it is unlikely to be a dividing factor in whether people are friends with you!
Secondly, disability. I myself have a number of conditions which I require support for. Although mostly invisible, I know that through advocating for yourself in the initial term, by speaking to the Uni's disability team and support networks to get the best and fullest support to help you succeed is one of the best things to do. And in terms of extra support, and being seen with it, remember that we all need support in some areas, for me it is having a laptop during examinations, and considerations made for my Style, others need rest breaks but really they are all things which we need to help us succeed the best that we can and be able to work on the same level as everyone else. I will admit, I have had a few looks, simply because I am very engaged, however I do this in spite of them, as they are so separate.
Finally, assignments, work and content. This one may sound silly, but It is to advocate, and simply ask for help. It is understandable that if you have been out of education for so long that sometimes things do go astray, so just ask. Many lectures are happy to answer questions, and help you understand, with many uni's also having additional study support in general areas, like essay style, maths and IT to allow each student to succeed to the best level they are able!
And given, this varies depending on the Uni, however I remember these general tips:
1) Don't underestimate the power of Hello - like anywhere, before lectures/seminars
2) If in doubt ask, ask friends, lectures, tutors or more. Someone can help!
3) Remember why you are at Uni, and remember your goals - as Uni is a personal journey.
4) You are not the first, nor the last to experience these worries, there will be help available.
5) Finally, make the most of it! However you see fit!
I hope this helps!
Tom
Third Year Psychology and Student Ambassador