( something wrong with my computer , I can not write chinese today)
It is never late to study.
When I studied in Uni, most of my classmate were younger than me at least 5 or 6 years, but they are very nice and patient.
Some younger classmates alway be there to help you if you need, that is what my feeling when I studied in Sydney. And until now, we are still good friend even not see each other because we all need to work .
So don't be shy to sit around young people, you can learn from them or they can learn something from you.
aged people studying here tend to be increasingly fashionable in australia! pursuiting this latest trend do make me feel outstanding and extremely distinguished.
please don't discriminate those young students who are naive and pure in life, they can be considerate to some extend.so,maybe find some clubs or night bars are good ways for you to socialise with locals, which is not only to release your pressures but also have more funs in enhancing your english.
look, everybody is different and who care about your age beside you.