<human>: Can you condense the text into three sentences or less?

Hello reddit! Long time lurker, first time posting, so I hope I am doing this right. Having come to the conclusion that my career path (education) is not for me, I have decided to enroll in engineering at my local college. The problem is, I have forgotten almost all of the math that I learned years ago while in high school. Can anyone recommend any good resources on the internet to help me re-learn my high school math? Free resources preferably, but I am also willing to pay. Right now, I am armed with just a ti-83+ and some determination. Thanks all!
<bot>: I want to re-teach myself high school math, but I don't have any textbooks. Are there any good online resources out there?