You can call these reasons or excuses. Often times that's a distinction without a difference. I'm posting this here because I think (I could be wrong) that there would be people here who could understand.
1. I couldn't remember to take it on a daily basis. Before I decided to give up it had been 3 days since I last remembered to take it & my daily pill box was empty.

2. It wasn't that important to me. Obviously if it was important I would have done a better job of remembering.

3. I didn't like the way it made me feel. The whole time I was on it my anxiety was constantly around a 7 unless it would spike. I had nothing to anxious about either.

4. My mood swings were much greater. (Kinda goes with 3) I have never dealt with mania, but I more often had "highs" I couldn't control.

5. After not self harming for around a year I started again.

Now that I have stopped taking my medication I am no longer dealing with many of the problems. So I guess in the end it's worth it.