Ok, listen. Your SCARED that if they go, youll do something crazy. Firstly, the fact you are able to recognize certain things as scary and crazy means you wont do them. No matter how much panic your mind is exposed to, itll never do something like make you kill yourself. Not even psychotic people do that (unless they are depressed) your SCARED to die, your scared to be alone. Your perfectly sane to have these thoughts butyour letting them rule your life. Listen, ive been where you are once but youve got to realize that anxiety and dissociation dont rule your decisions. Your not gonna go crazy and kill yourself. If you had gone crazy, you wouldnt even be on this forum. Yes, the things you experiance with dp SEEM crazy and scary at first. But despite how crazy you feel, your perfectly sane because your checking yourself. Sanity checking is something ONLY a sane person can do.
Your surgery recently mightve been the cause yes, but your not in some comatose state. Surgery can cause dp/dr though its not the most common cause. Dp/dr is caused bt stress or chemical changes in your body. Your surgery may have done one or both those things. Surgerys are stressful! I dont blame for freaking out about the dpdr, its incredibly surreal and crazy and scary.
My advice? Sit down and read a book, or meditate, get a project going, do something thatll distract you from this for a little at least. I know its hard but you need to learn to not rely on other people to make you feel better. This is very hard to do, i know. But your parents wont be around forever plus you have a separate life from them.