I'm trying to do this too right now. I've found this course on real analysis to be very helpful (I suggest watching it sped up though): https://youtube.com/pla

I'm trying to do this too right now. I've found this course on real analysis to be very helpful (I suggest watching it sped up though): https://youtube.com/playlist?list=PL0E754696F72137EC https://youtube.com/playlist?list=PL0E754696F72137EC