I am a new diver with 12 dives so far, 2 of them being in the ocean. This past weekend, I went for the 13th and looking back, I am feeling very lucky to be alive.
You were under weighted but you shouldn't consider that what you just went through was a life and death situation (just to put things in perspective).
It was life and death potentially only in the sense that any dive can turn out that way. You simply were under weighted and were on a dive profile that you weren't ready for in the first place.
You need to think things through ahead of time and if you don't know the answer, ask questions until you are satisfied or don't do the dive.
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When I tried to tell them what I had booked, they told me I was either going out on the 3 tank dive, or not! Being new, I was not comfortable with this, but against my better judgment, I accepted, thinking that I would just do 2 of the dives as I had driven 2.5 hours there the night before and stayed at a hotel. I just did not want to waste it.
Why is this even an issue? You either get to do one more dive than you had planned on doing or you can sit one dive out?
I sense that you are just out of your element and everything is worrying you. This can be a good thing as far as the worry if it is well founded but only if you react accordingly which may mean canceling the dives.
I started getting curious about the depth both as a new diver and also we were all on Nitrox and my two of my tanks 35%s and one 32%.
Are you certified for Nitrox?
Being the newbie, I put my trust in the Divemaster, thinking he would keep things safe for me.
Wrong move as has been explained. Be responsible for yourself. He will probably do his best but what could he have done in this case considering he had others to look after as well? I'm asking this question just so that you will think through the process.
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I was weighted wrong with my new 7mm. I had 16lbs it was great for my 3mm, but not this one!
Did it not occur to you that weighting would be different for 7mm vs 3mm? At this point you should have just gotten out of the water. Remember if you are under weighted at the beginning of the dive you are going to be way under weighted by the end of the dive after you've used up most of the air (weight) in the tank.
Again, you just need to think things through beforehand.
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Then, when I saw the 1200psi and still saw these people around 90+ feet, I just said, forget this I am going up.
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I told them I was not doing any more dives for the day.
Good move coming up at 1200psi and sitting out the rest of the dives.
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I am very scared now.
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You shouldn't be scared or rather the fact that you are suggests that you aren't ready for the type of diving that you are doing.
As was pointed out there was little the DM could do. You need to realize that the whole point of becoming a certified diver was to become responsible for yourself.
It's good that you shared your experience with others. You should continue diving if it's something that you want to do.
Most of us were awkward on our first OW dives. You made some good decisions as far as coming up when you got down to 1200 psi. Many newer divers wouldn't have come up until they were also low on air.
Just remember that you are responsible for your safety. Try to find a dive buddy and bring him/her with you on your first dives or at least hire a DM to be your buddy.
Finding an experienced buddy should be your first task.
