Oppressing bad thoughts or trying to fight them only means you're using energy on keeping that conflict alive.. we have a constant stream of thoughts, it's what the brain does.. But it's always important to observe the thoughts as what they are, just thoughts.. rather than derive a sense of identity from whatever we think.. Our brain is an organ, we are it's user.. when we value ourselves by our thoughts we're limiting ourselves in the most constricting way, we have infinite potential.. It's just a matter of truly realizing that you do have this infinite power.