What do I do ?????

So for those of you that have the ADHD kid, you know how hard transitions are and you know that sometimes they are neccessary.....So Shannon is going to start a new summer program. Everyone tells me how great it will be for her and she will be just fine and who knows maybe she will do better......First day there... they want to send her home cause she is hitting people. Another day crying my way to work.....I feel so hopeless. What do I do....how many times a day do I hear "you better start thinking about medication" Why do I have to start thinking about medication at 5. Will it really never get better? Will she really never get it? ....will all the work I have been doing really NOT pay off? What do I do....listen to my gut, listen to the experienced parents that don't have a kid like Shannon. What do I do????.