This is the book I got when I went back to school, also at the age of 30 and 12 years removed from school,

Jerome E. Kaufmann, Algebra for College Students 10th Edition. https://www.amazon.com/gp/aw/d/B00IMHK9ZO/ref=tmm_kin_swatch_0?ie=UTF8&qid=&sr=

I worked through the first 10 chapters thoroughly, then moved on to a precalculus textbook, and now I am currently working through calculus. I believe the best resource for learning math is a textbook. It may be difficult at first but it works. Much more effective than videos. If you can understand what is written in the textbook and you can solve all the odd problems at the end of each section you will be in good shape.