Yes. All other variables being normal. You don't have any medical condition that might preclude you from being sedated, great.
So, what you're describing would be considered a reasonable dose for an Opioid-naive individual. By throwing Lorazepam (Ativan) into the mix, you're more likely to just end up passed out. If you're truly looking for a good time and not to just anesthetize yourself from life's problems, don't exceed .5mg and ideally don't take any Benzodiazepines unless you find the experience very underwhelming.