You can claim yourself and your return is correct, and no Amended return is needed.
Your mother needs to go through the Personal Information section again, as you were NOT a full time student in 2017 and you made over $4,050 (exemption amount), so she will NOT be able to claim you on her return.
Also appears you provide over half of your own support.
She must of not answered a question correctly or did not know how much you made.
