The ibuprophen no the naproxen is really going to ruin your whole day and will more than likely will cause permanent damage though not fatal . Fluoxetine might make you unconscious at that dosage and citalopram will have some bad side effects of it's own when combined with citaopram . I suggest inducing vomiting immediately and turning yourself in for a psychiatric evaluation . suicide is a permanent solution to a very temporary problem in most cases . The drugs you have access to show you have mental issues that are not placing you in the best position to judge your own actions .
Honey, if that stuff can kill you you are screwed.
Throwing your life away like that is stupid and cowardly. And trust me I've been in quite some bat situations in my life. But I struggle one just out of spite if I have to.
And btw. 2000 mg of ibuprofen are gonna hurt your stomach pretty bad, I had to take the 800mg for a while and I was constantly having stomach issues because of it.