What is the best way to self-teach mathematics?

This question has probably been asked a million times, but I will ask again: Is there any advice on learning mathematics? Right now, my strategy for learning is reading and absorbing information, solving some problems to understand it better, writing notes with examples and explanations of how to solve or use concepts, then noting the "why" behind equations, like why x does this or that, and regularly revisiting the material during revisions. All that stuff. My question is whether or not this strategy will negatively affect me in the long run. Am I actually learning anything, or am I just getting temporary knowledge without actually understanding? Because I have goals I need to reach, and I’m not sure if this method will get me there. Yeah, also advice, if this strategy seems silly, I'd love to hear actual knowledge from all the mathy brainiacs out there. I aspire to be you;p