Is the prayer of one afflicted with obsessive-compulsive disorder accepted if they perform it feeling afraid, anxious, and confused because of their ablution?

This anxiety and tension do not affect the validity of your prayer; rather, it is valid and accepted. We advise you not to pay attention to these whisperings (waswas) and to strive against them, and to exert effort in dispelling anxiety and tension with the help of Allah Almighty, along with consulting trustworthy doctors.