Not trying to preach but jst sharing my experience. I was atheist too and got addicted to drugs after my incidence with bitches at uni. Read up on Greek Mythology while high and Requested Hades God of the Greek Underworld
https://en.wikipedia.org/wiki/Hades for help. Did manage to get revenge on the bitch that fucked me up thnks to Hades without managing to indulge into societal criminal activity. But yea used to have same thoughts before of unfair world, unfair life etc and still do some times now 2 truth be told so I totally understand where some people are coming from.
Even tho revenge is ok, the painful memories from those years at uni don't fade away even afta 11 years and especially wen I see a Chads and Stacies (especially of uni age) at like restaurant or shopping malls , those fuckn pain ful memories keep coming back.
But for me I also know it wz my new found faith that keeps me going in most extreme difficult/depressive times without resorting to suicide or killing/shooting of Chads and Stacys / murder-suicide. Its hard for me to describe in words how faith (in any diety) helps but it did help me and kept me on path and prevented me from deviating towards full blown criminality even though I came close to that few times.