Hi Asphyxia, the thoughts you were having kind of sound like OCD thoughts. If you fight OCD thoughts they tend to get stronger. In case the thoughts return, here are some things that help me:
1. remembering that my thoughts don't define who I am
2. remembering my brain can produce disturbing thoughts but that doesn't mean I will act on them
3. remembering that in the end, it doesn't matter what people think of me, even if they find out that I have horrible thoughts
3. allow the thoughts to freely pass through my mind and even positively welcome them to do so. When I do this the thoughts lessen over time
4. practicing ERP techniques and when doing so remember that compulsions can be thoughts too
5. practicing mindfulness techniques to increase focus, reduce anxiety, and help give my mind more ability to choose which thoughts I want to pay attention to. This is not religious (Buddhist) meditation. It is just a set of mental exercises that help your mind to stay calm and focused. Here is the book I used to guide me: "Mindfulness: An Eight-Week Plan for Finding Peace in a Frantic World"