Hello, I had the same experience, say, transfer from the Beijing Capital International Airport to the railway station on my own this January. It goes like this, first, take the airport subway from the airport get Dongzhimen Stop and then take the No. 2 Subway from Dongzhimen Stop, and you will arrive in the railway station soon.

According to what I got from the internet concerning your second question, if you take the train 2549 from Beijing Railway Station, you will arrive in Anshan at 08:00 next morning. After you get there, you can take the No. 232 Bus to Anshan Normal University. While, you can ask the locals if possible, sometimes you may meet people who speak quite good English. Good luck!