This is true. If/as physical dependency has formed, alcohol withdrawal can kill. If you choose to taper off with alcohol - which is hard, but doable unless you have developed addiction - you should make a plan of how to do it, with the amount you drink decreasing each day until you reach not drinking at all.
If this doesn't work out and the withdrawals are intolerable, home detox with a 3-day course of benzodiazepines is another option, if you can get a doc to prescribe them to you, which you won't if you tell them what the intended purpose is. And of course if you drink while taking benzos, you are royally screwed, even if you don't die. Prescription antihistamines are used - among other things - for those patients who can't have benzos due to being addicted to those. And the final option is a detox clinic, but this will leave a permanent mark on your patient history and that's a whole different story.
I'm not trying to use the tough love approach here because the whole concept is bullshit based on bullying IMHO. Rather, I'm encouraging you to focus on this now that you still have the reins in your own hands and are most likely able to taper off and quit without medical intervention.
This is a big step. Being able to resist peer pressure is big, so you do have what it takes. Now on to more steps!