I've become a bit obsessed with maths in the last month. I'm studying it in all my free time. My knowledge is probably at the level of a 1st year student who just finished their 1st semester and did pretty well. I did 3 maths subjects at uni and aced them. However, I've forgotten quite a bit of it over the last 12 months, but have also re-learned a decent amount. I've been starting my learning with analysis but I'm not sure it's the optimal way to start things off again. Do you guys have any recommendations? I'm not sure what I should focus on first ... linear algebra, calculus, or the proof/limits side of analysis?