You are choosing a most challenging and rewarding field.
What should you expect. Long days of hard work and constant action. No two days will ever be exactly the same. You can expect to have 15-25 students all needing your attention and help at the same time. There are moments of extreme frusteration when you wonder why the hell you are doing what you are doing. However those moments are short in duration and far apart.
You can expect to celebrate your students' successes and encourage them through the times when success seems [to them] to be far away.
You can expect some parents to be wonderful and some to be demanding and very hard to work with.
You can expect to have the time of your life during the day, and be bone tired when you get home.
You can expect to go to bed every night satisified that you made a positive difference for a child that day, and that tomorrow you will have another chance to reach that child that just couldn't get it today.
It's frusterating, infuriating, insanity provoking...and I wouldn't trade one minute of any of it for any other profession.
If you become a teacher you can expect to love it just as much!
Welcome to the profession!