Hi, folks. I'm currently in Calc. III, and having a very hard time. Right now, each one of my home-work assignments seem to take hours. I'll spend 30 min. on one problem, get it wrong, do it again, and again, and again—until I finally get it right. It's taking huge amounts of time, and when I do finish a problem, I hardly feel as if I understand the material; moreso I just followed this very rigid set of instructions wherein I plug in the respective numbers of my problem and magically get the right answer. I try to think positive, put in a lot of studying time, etc., but nothing seems to be working out for me. I have a lot of homework in my other classes, and it's a choice between me falling behind here or there. I'm really discouraged. Although I'm putting in large amounts of time, I feel as if something I'm doing is seriously detrimental to my efficiency and effectiveness of studying. I'm struggling to get the right answer, and if I do, I understand the information just as little as when I started. So I come to you guys for help: What did you do when learning Calc. III? Did you have these same problems and how did you fix them? I failed my first exam, and I want to thoroughly stomp the next; is it viable to get a good textbook and try to run through that to more intimately understand the material? Do you have any suggestions for said textbook (preferably one written by a single author, not a heavily edited committee). The homework isn't helping me, and I want to finish it via whatever means I can as to hopefully steal some free time so I might actually learn Calc. III. Thanks for any input, ladies and gents.