You made a 70/100 and you failed??? That's not right at all!
I wish I knew the secret as to how I made it through my math classes, because I really don't remember how to do any of it now. Simple algebra with one variable is pretty much my limit now.
I know there are some books like "Algebra for Dummies," "Algebra Made Incredibly Easy, " etc. Have you tried anything like that? What about a tutor at your school? Both universities I went to had math labs that you could go to and see a tutor (I think it was free, too).
But you definitely have to lose your phobia of word problems. Don't be scared of it just because it's words and not just numbers. You just have to write down the numbers in the problem as you come to them, and figure out what order they go in. I know on my pharm tests in nursing school the dosage calculations were essentially algebra word problems.
I remember when I was taking pre-algebra in 7th grade that I just did not get it for weeks, then one day I was doing my homework and I suddenly understood what "x" was and why I wanted to find it. It will come, just be patient and try not to stress too much.
By the way, if you made a 93 on your test, congratulations! That is great. Do quizes count for very much on your final grade? If they count as one test grade or less, don't worry too much about them. All you need is a C, right? So don't be too hard on yourself.