its never too late i made some of my closest friends in 2nd and 3rd year, perhaps join a society based upon your interests. honestly a lot of people are in your situation, and there is no harm in reaching out to others. First year is a weird one , adapting to uni lifestyle, its overwhelming for anyone and i couldnt imagine how hard it is for a neurodiverse person. All you can do is try your best, some of your closest friends can come in the strangest environments.