Gallbladder surgery im scared please help me?

okay so i am a 19 year old female my name is Ellie i have gallstones and have had them for about 2 years now and they are making me have problems i went to the surgeon twice over the past 2 years once they told me i need surgery the other time i didn't. but i went back to my doctor a week ago and he said i need my gull bladder out so i go see the surgeon on Wednesday to see if i really do need it out he said that if i went back again id most likely have to get it out and i"m really scared how long will i be sore for do i stay in the hospital when can i work out again i"m scared to be put asleep i hate the feeling i get when they do, can anyone please help me out and tell me what happens after and do i have to cut out fats and will my stomach stop hurting and the nausea please let me know thanks