Hello! You don't know me but I couldn't help but write to you. I'm sorry that your family is sticking it to you over this surgery. It seems to me that they're feeling very threatened by your decision to take control of your life. If they are legitimately concerned with your well-being, then give them ways to help and they should be glad to do it. However, they may just be afraid that you might actually change who you are and become more HAPPY, something they may not be themselves. We humans are very resistant when people close to us change -- it's kind of like we have changed the steps in the middle of the dance and everyone's thrown off balance. From a logical standpoint, with what you've been through in the past, they should be MORE willing to give you some support rather than scare you into submission. Even if they are genuinely concerned, how dare they worry you! Rather than let them accuse you of being selfish, you should suggest they offer to help you MORE to help insure that your surgical experience is as low stress as possible. Kind of a put-up or shut-up thing. (I would think your husband would be actively seeking sitters to help because the majority of that responsibility will fall on him anyway.)
However, if it is really heart-wrenching for you to go against your family, maybe you could take a few minutes out of your day today and analyze each person individually -- ask yourself how your determination to have a new life would affect THEM and you'll probably have your answers for their behavior. Then you can avoid rehashing your motives and explanations for WLS -- the decision has been made, hasn't it? -- and focus on the positive. In the meantime, try to save for a babysitter, Visiting Nurse, anything -- and involve your husband in your efforts.
By the way, as someone who suffered horribly from post-partum depression, too, the liklihood of a recurrent psychotic episode from a condition that is supposedly due to the hormone fluxes and stress of pregnancy would be minimal, wouldn't it? While I have heard of post-surgical depression after WLS, it is a very different thing. But hey -- you're the nurse, right?
In my own case, while my husband and adult kids are behind my decision for WLS %110, the rest of my family -- especially my siblings -- have sabotaged my efforts to change my life in the past. My solution is a "need to know" strategy -- I'm not telling them until a week before my surgery. It took me over 40 years to truly understand and accept their motivations were something deep within them and that I can't change them, only myself. (Choosing another lifestyle is NOT rejecting them, but they don't get it.) So, while it's not the perfect solution, I have learned that avoidance sure is heck is the least stressful! They can't drag you down if they can't get a hold of you!
GOOD LUCK AND STICK TO YOUR GUNS...