My daughter is in cal cat UIUC and she was so confident she would have nonissue since always A in calc. Her first test she thought she aced and got a 71. She learned what the professor expects saw points taken off for forgetting an equal sign. She ended up with an A. She is now in some advanced calc and studies hard goes to all her discussions and is trying to get an A. So if you enjoy math you will be fine, may have a learning curve in college but she is doing fine. She is engineer.