No one beginning a bachelor program is ready for the doctoral level, and would faint if that's what they had to know the first year. If you take a good educational course/journey you will be ready when you get there. With practicum, you will learn the parameters of good therapy and self care, and still have someone to remind you about their importance. You're already learning what you think you will like or not, and though that might change, it is your foundation at this point.

Regarding others stopping and taking your time... there are ways to limit that, and to limit the time. We are taught to be polite when we greet others, and to stop and give them full attention and body language. But, when caught in the hallway, i.e., keep walking! Make eye contact, smile, greet them, maybe wave...but keep walking to your intended goal. (A sense of urgency helps, as though you ARE on the way to the restroom!) You might "learn" a variety of phrases that are polite but don't involve any long explanations. HEY! Good to see you... maybe I'll catch you later... well, you make your own that work for you and your environment. Good wishes!