Protesting a genocide is often a nasty business. It is still the noble and correct thing to do. Free Palestine.

To echo what another said, you need to speak to a doctor about medication. You admit that your paranoia leads you to attempt " to ruin someone's life" about once per year. The fact that you also don't think this is enough to warrant serious action is extremely concerning. Regardless of how you feel about its impact on yourself, you have no right to inflict ANY harm on others as a result of your mental illness.