Anger & Anxiety issues

I am still having a hard time transitioning off the paxil.  Doc said to drop it at 10 mg due to serotonin overload and awful side effects.  He upped cymbalta to 40 mg.  I am sooo angry and anxious by midday I just want to scream and break things.  When I start to feel that coming on I take .25mg xanax and it helps to cut the anxiety in half.  I cant take more (allowed .50  twice a day) because then I can't function--I get very sleepy.  I'm preparing for my hubby to bring his dad home from another state for a week.  We just moved him to an independent/assisted living facility a few months ago.  He's declining fast and is 88 yrs old.  He's coming home for the week to see friends, say goodbyes, tie up loose ends, etc & meet the lady who is selling his condo.  I really don't know how I'm supposed to go to work which is exhausting, get home at 5:30 dead tired, and worry about entertaining him, cooking, cleaning up, etc.  My hubby is great & he will do a lot but I know hes exhausted from doing all dad's bills, moving his stuff, making the trip out to escort dad home.  Every year its some new crisis with another family member.  I am sooo tired.  I want to go away somewhere alone--just me-- for at least a week.  A retreat or monastary or somewhere peaceful--no phone, no tv.  I'm afraid because I think about death alot when the anxiety builds really high.  Doc says this will pass soon and to take the xanax.  It's hard to stop crying and I don't want to go back to work til I'm evened out.  Maybe I should just retire now instead of December.  I feel like I'm dying inside.  I'm so unhappy and I should be happy because I'm so grateful for all my wonderful family & friends.  I don't want to drag them down--this depression will get old really quick, and then what?  When does it end?