I’ve finally convinced myself I’m crazy

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this started two weeks ago i was watching a murder program and feel asleep woke up in a panic and had an intrusive thought that i was going mad and going to kill everyone I’ve had these before but for some reason it just got to me i ended up taking some dizapeam to calm me down the next day understandably i felt spaced out and ever since then I’ve convinced myself i feel weird strange that everything doesnt feel the same, i worry constantly but just dont physically panic as i used to, im scared i will never feel the same as Ive never felt as weird as i do now, its hard to explain i can function daily sleep 7 hours a noght but the second i wale up i think do i feel ok today, is the world normal, do i feel better and then i feel strange again every single day i do this non stop the only physically feeling i have is a sense of dread hat ive finally lost it and im going to loose my mind. please someone help me, if anyone has felt like this not real but not physically panicking at the same time just over thinking!
will i ever feel normal have i hust got used to feeli strange and convinced myself?