>>10457080When you're done. Challenge yourself to work through Gelfand's books:
Algebra by Gelfand and Shen
Functions and Graphs by Gelfand, Glagoleva, and Shnol
The Method of Coordinates by Gelfand, Glagoleva, and Kirillov
Trigonometry by Gelfand and Saul
They will force you to really understand what's going on.