I think the best two years of university for me were 3rd and 4th year (I did a four-year course). The course had become more specialised so I was enjoying the material a lot, and I continued to meet new people through both classes & other uni-related things like societies, some of whom I'm still really close with. Yes, of course there were some stressful moments with work etc., but I felt as if I had settled in completely, knew how everything worked, and just generally felt more confident.