Either your the second coming of Jacques Cousteau or INCREDIBLY relaxed under water...either way...revel in it...your way ahead of most new divers.
LOL! I'll go with "relaxed".
I didn't mention, on the second morning, just before we all jumped in to do our "don the scuba unit while in the water" exercise, an instructor came by and squirted a big blob of anti-fog in my mask. For snorkeling, I've always just used spit, but since they were offering, I held my mask out and let them put it in. I rubbed it around then waited until just before I got in the pool to do a quick dunk to rinse it out. I have a mustache, so my mask was letting water in constantly and I was having to clear my mask often. So, I jump in with my mask on and almost immediately needed to clear my mask. I quickly learned that blowing out my nose and having water in my mask splash into my eyes sucks a lot more when there's anti-fog in that water! I had anti-fog in my eyes and up my nose a little bit. It does sting!
With all that going on, I then got to put on my never-before-worn BC/scuba unit and figure out how the straps worked, etc.. All while floating in the deep end of the pool. And having to pause periodically to clear my mask again (each time getting a new splash of anti-fog in my eyes). I did eventually get slightly testy with my g/f, who was hanging on the pool wall near me. But that was only after I had gotten my BC situated and was floating there with my mask off, trying to wipe the water/anti-fog out of my eyes and coughing/sputtering a bit from the anti-fog I swallowed after it went up my nose - and she was asking me questions like "what's wrong" and "are you all right" at the same time the instructor was trying to talk to me. I finally put my hand up to her and said "let the instructor handle it" - admittedly, in a bit of a testy tone of voice.
I dealt with all that and got myself taken care of, without wigging out, swimming over to the pool wall to hang on it, getting out, or having to ask for help. So, yeah, I think, normally, I was pretty relaxed in the water. No Jacques Cousteau. Just not the type to get wound up without a reason.
I have many years experience racing motorcycles. When you're doing 100+ MPH, dragging one knee on the ground, and the back tire is sliding just a little, and then some jackwagon behind you runs into the back of you and bumps your rear end out another few inches, and you still don't freak out, jumping in a pool with an air source that you can breathe off of, no matter what else you have to screw with, just doesn't seem like much of a cause for alarm. LOL
---------- Post added October 27th, 2014 at 04:52 PM ----------
It IS awesome that you are using so little weight . . . because it means that you are not having serious problems with your descents, and it also means your instructors haven't succumbed to the temptation to overweight their students to plant them on the bottom of the pool (something which is quite common).
As far as going onto your face goes, it's simple physics. If you are vertical at the surface, some things, like your BC bladder and your wetsuit, are pushing you up. Other things, like your full tank and your weights, are pulling you down. If where those different things are is not arranged properly, you will have a tendency to move away from the floating things and toward the sinking things . . . so if you have a full back-inflate air bladder behind you, and your weights in integrated weight pockets on the front of the BC, you will tend to tip forward. You can ameliorate that by moving weights to the back (and although some jacket BCs have trim pockets in back, the ones your shop carries may not), using a more negative (steel) tank, or distributing the lift, which is what a jacket (wraparound air bladder) BC does.
However, all of this really depends on the BC being sufficiently attached to you that it can't ride up. If it does, the angle of action of the flotation bladder will change, tending to push you forward. One of the advantages to the harnesses used with backplates is a crotch strap, which prevents this. Few other BCs have them. If you don't have a crotch strap, you really need to ensure that the BC you are using fits you correctly and is really snugged down around your body, so it can't move up at the surface.
Honestly, if an instructor would have just said "actually, what you have is really how you SHOULD be setup" that would have made it a LOT better for me. Instead, everyone else was in jacket BCs and floating vertically with no effort, and I was left feeling like I should be floating the same way and, because I wasn't, I needed to get my rig "fixed".
