I am looking to get from Boston to Manchester, NH even more specifically Saint Anselm College if possible?

Alright so I go to college outside of Boston and can get a shuttle into south shore plaza or the Quincy Adams T Station and I am looking for a way to get to Saint Anselm College in Machester. If u cld keep the price range decent since I am a college student and I hope to make this trip often. Thank you to all that answer!