If you take a large cocktail of "stuff" without knowing what or why, you're highly unlikely to succeed, highly likely to end up in serious pain, and may well end up suffering permanent damage. Your specific suggestion has about a 0% chance of fatality, unless you end up drinking enough alcohol to die of alcohol poisoning, in which case all the other pills aren't going to help, but might cause permanent liver damage in the overwhelmingly likely case that you survive.
Prozac is basically impossible to fatally overdose with (same as other SSRI antidepressants, and most modern antidepressants in other classes), but can cause
Seratonin Syndrome. Not bad enough to be fatal, but bad enough to be agonizing.
You also don't have enough there to give yourself much of an overdose. When I was on Prozac (briefly), I took 300 mgs a day, and ended up mocing onto 400 mgs a day of each of two other complimentary antidepressants instead of Prozac. So... yeah, 1100 mgs of Prozac is not a lot.
OTC prescriptions these days are also not a good choice, as they're almost impossible to fatally OD with, even in combination with other drugs. Swallow a bottle of sleeping pills, a bottle of aspirin and a bottle of liquor, and all you're going to do is end up in a psych ward with a stomach pump, a pounding headache and some liver damage (Acetaminophen and alcohol combine in the liver to create a compound that causes liver damage, but ultimately isn't fatal, and I don't imagine anyone wanting to spend years dying of liver failure, either.)