I know you and
@FriendlySpartan already had some back and forth, so I'll just say my peace. Deadlifts are not an inherently dangerous lift. Bench press and squats are much more dangerous because you are underneath the bar.
People get hurt in any lift when their form breaks down under near maximal loads. If you have repeatedly injured yourself, there's probably some inconsistency that rears it's head as you get fatigued. There are several ways you can address that.
1. Figure out the specific issue and modify your training to address that issue. Deadlifts are a lot more technical than people realize. If you're just horking the bar off the ground, you're not going to realize your potential. Finding those technical deficiencies and addressing them will allow you to lift more weight safely.
2. Reduce the weights or the reps per set and really focus on your form. Deadlifts are notorious for the first rep being different than the rest. Usually the second rep is the "best" as lowering the weight the first time puts you in the most natural position for your body. Consider letting go of the bar and standing up between each rep to get more practice in your setup. Really consider recording your lifts - it's helped me a TON. You may need to switch from conventional to sumo (or vice versa), or try different back and leg angles to find what works best for you.
3. Take a bit longer rest between each set. That will let you recover a bit more so there is less form breakdown over the course of the workout. For powerlifting/strength gains, it's usually recommended to take 3-5 minutes between each set. Your goal isn't to fatigue the muscles, it's tough teach them how to produce maximal force. They need to be recovered from the previous set to do that.
I'm a 44 year old powerlifter myself, and last fall I hit an all time PR deadlift. Been lifting on and off since high school, and last fall was as strong as I've ever been. Had a bunch of work travel, sickness, and dinged up my shoulder from passing out while vomiting during said sickness the last few weeks so in a bit of a rebuild at the moment.
Even while you're injured you can usually find something productive to do. Right now I'm doing sets of 16-20 on squats, bench and RDLs with very light weights while I wait for my shoulder to get better. Prior to that I was doing sets of 1-3 with 85%+ of my 1rm.
One concept I've adopted that I really like is called autoregulation using RPE - Rate of Perceived Exertion. It's basically a rating scale from 4 to 10 of how hard a particular set was. An RPE 10 was an all out effort - you could not have done any more weight or reps. A 1 rep max. An RPE 8 means you think you could have done 2 more reps at that weight. An RPE 6 means you think you could have done 4 more reps at that weight. Anything less than an RPE 4 is considered a warm-up - not enough stimulus to generate adaptation or systemic fatigue. The purpose of RPE is to keep you from going too hard too fast. Most powerlifters stick between an RPE of 6 to 9. As you get stronger, the same weight gets easier so you have to increase the weight or reps to maintain RPE. It keeps you in the right range of stress for the progress you are making. Compared to just adding 5lbs every week, it prevents you from overshooting your capability. You can't just add 5lbs forever, eventually it gets too heavy and you either stop progressing or get hurt.