Need support, really struggling

[OakLeaf]

See if you can maybe find a studio that has one or two classes a week that are donation-based. It's not uncommon. I would recommend either Anusara or Iyengar because of their focus on alignment. Any practice that overlooks the foundation is inviting injury, and I include everything in that, not just yoga - ordinary American-style strength training, CrossFit, Pilates, etc. Anusara might serve your particular needs best because of their emphasis on opening the heart.

As far as the energetic aspects, I'm a big believer (and have tons of experience) in collective energy, so from that point of view I prefer a class. But if you get a really good teacher to show you the basics four or five times so you really have a sense of what to do, then there's nothing wrong with practicing at home, since you can keep your teacher's alignment cues in your head regardless of what the DVD is telling you to do - and then it's whatever works best for you on an emotional and energetic level. For some people it's easier to tune out distractions when they're alone.

[Crankin]

I would recommend a class first, to learn the basics and have someone monitor you as Oakleaf says. I like simple hatha yoga (Kripalu style), but I am not an expert in the different traditions.
Of course, I did it the opposite way, but at that time, I was doing yoga mostly as a flexibility complement for cycling. When I went to a class, I knew the basic poses from the DVD I had, and the instructors at my former gym were really good. However, when you are doing yoga more as a calming strategy, I think having supervision is even more important. You might not want to be alone if it brings up a lot of feelings. Even if it's not specifically a yoga therapy class, it's good to have the support of the instructor if things get overwhelming. They are used to this.

[indysteel]

Badger, a lot of studios offer a reduced fee community class. I go to one myself that costs $5. You might check around. At least in my area, most studios don't focus on any particular type of yoga. Most classes are billed simply as hatha or vinyasa. My main studio offers a few Anusara classes each week, but everything else is pretty eclectic in terms of style. I would love to try some Kripalu classes, because I think it incorporates what I'd like to get out of my practice. But it ultimately comes down to the teacher. Some are better than others at teaching and leading a class, and some give off vibes I find more appealing than others. I tend to think you might gain something emotionally from practicing in a class setting, too.