I'm afraid that having a Brazilian butt lift will kill me?

Every surgery carries risks, but a Brazillian Butt Lift is not safer or more likely to kill you than a large volume liposuction with or wwithout a tummy tuck.  Chose a board certfied plastic surgeon who has done a ton of butt lifts.  and that he or she has previlages to do this surgery at a local hospital. Also make sure his or her OR is certified and you will be fine.

Generally speaking a Brazilian butt lift is a very safe procedure. The complications are not volume related. The most common complications are swelling and bruising which resolve over the first month. Also, you can expect to lose 30 to 50% of the fat injected. 
If the fat is not correctly injected some of it can die and you may feel lumps, this is called fatty necrosis. Fluid collections or seromas can occur if there is too much undermining. These complications depend on the surgeon's technique and can be completely avoided. 
The most dreaded complication is a fat embolism which occurs in less than .1% of the cases. This convocation can be completely avoided by your surgeon by not injecting into the muscle layer and using a large blunt cannula. #StayBeautiful @RealDrWorldWide

Any cosmetic procedure should be performed by a board certified plastic surgeon, who is experienced in the type of surgery you desire. There are always risks undergoing cosmetic surgery. However, death from a Brazilian Butt Lift is rare. Is it possible to hit an artery by liposuction? Yes, but extremely rare with an experienced plastic surgeon. Hope this helped, best of luck!Dhaval M. Patel double board certified Plastic surgeon Hoffman EstatesBarringtonOakbrookChicago