This year I've churned through all the introductory level texts from Art Of Problem Solving. Yes, they're written for high schoolers and you need to have some humility to admit you might be missing or have forgotten some fundamentals, but the lesson strucutre really appeals to me. It's the only series I've found that respects the learner and really builds up knowledge one piece at a time.
Before I start the intermediate texts and the calculus book, I've taken a detour to "Linear Algebra: Theory, Intuition, Code" and it's sticking a lot better now than previous attempts on the subject. So that gives me some confidence.