There has been lots of good advice in this thread so far! Here's my two (four?) cents:
1) Like (almost) everyone else has said, find a chance to play with the wetsuit in a pool somewhere. I did my rescue training with a dive shop in Portland (we too did our ocean dives in Hoodsport!) and I remember the pool being disgustingly hot. Even so, it would have been totally possible to spend at least 30 minutes in my 7mm, boots, gloves, and hood! This might be all the time you need to practice putting your fins/mask on and play with your weighting a bit. People are going to laugh at me for this next suggestion, but if you really want to get used to moving in/wearing your wetsuit, wear it in the shower once or twice. I've done it
!
2) Most places overweight their OW students. We do it, as does every other local shop. It makes our job easier and makes sure that you will actually get to the bottom and get to do your skills. Plus, it takes a little bit of diving to get comfortable with the feeling of being truly neutral. Regardless, you sound WAAAY overweighted. Our students wear 7mm suits, gloves, boots, and 3/5 hooded vests and still only use 24-26 lbs on average (in SALT water, with AL80s). Yes we get the occasional students who need a little more, but divers who truly need 40+ are rare. A farmer john might add a couple of pounds, but it sounds like you need a good weight check... I wear 20 lbs with the gear listed above and am even slightly overweighted with the knowledge that I can give away a couple pounds underwater if someone needs it.
3) Octopus hole is a bad call for an OW class. I like the site, and have had a lot of fun on the occasions when I was there, but that cliff is treacherous. My land navigation skills are a little off, but we did some of our class dives in a state park just down the road from there, the name of which I can't remember. It was literally on the same road, there was no fee, and it has a SUPER easy shore entry. I'm sure one of the more local divers to the area will know the name... but it's a much better choice for OW and I know a lot of Portland shops use it... there were tons of OW classes there when we were. (and this was only a couple of years ago so things shouldn't have changed too much!)
4) This may sound awful, but as a female diver, it doesn't take much to get someone to help you with your gear if you need it
. I can barely pick up my steel doubles when they aren't on my back. As stupid as it makes me feel sometimes, I will now always ask for help with them if I need it. It only took one time of dropping them on my foot and breaking a toe to learn this. In your case, falling down on that climb would have been worse. If there were many instructors/DMs present that day, someone should have helped you. We don't make it a practice to carry our students gear, but when conditions are bad, or someone truly needs the help, I have seen every instructor/DM that i work with step up and help out. A little bit of assistance can really prevent things from taking a bad turn fast.
Don't give up on cold water diving!
It's great that you already want to come over to dark (green and murky?) side! All of us that like cold water diving are only a little crazy...