I am hoping someone can assist me, as I am unsure of what to do in this situation: I was a student in the UK 5 years ago. I rushed into the decision of studying abroad and chose a course that was unsuitable for me. I also had anxiety issues that I was dealing with. Anyway, I had poor attendance and wasn't performing well academically. The university I was at informed that they were going to revoke their sponsorship. I received the curtailment letter shortly thereafter, and I left the UK immediately (I did not overstay the curtailed visa). I enrolled at a university in my home country, I graduated, and now have a full time job.
In 2016, I acquired a new citizenship that allows me to enter the UK as a visitor visa-free. I am planning on going to the UK in mid-October 2018 using my newly acquired citizenship for 10 days to visit my brother who's currently undertaking his masters degree there. Will I face problems at immigration when I try to enter?
I'll be bringing important documents with me (return home ticket, proof of employment, hotel reservation...etc). Will that be enough or do I need to take further steps?