I failed my real analysis II exam, I failed to make progress at the gym, I failed a quiz on agile software development, I guess you could even say I failed to go on a date since I got stood up.
For analysis, you can check out:
- "Problems in Mathematical Analysis" - Demidovich
- "Differential and Integral Calculus" - Piskunov
- "A Course of Higher Mathematics" - Smirnov
Excellent books.
[Link edited as I posted in a hurry. Thank you, sedeki]
I made booklets folding A4 paper longitudinally in half. Easy to put in my back pocket. Solve problems everywhere. It's more economical, too, a lot of paper is not filled with ink if you leave it in A4, and folding it to make A5 doesn't sole the problem (short lines) an is impractical to carry (can't put in back pocket).
That's exactly the path to success, by continuing to challenge yourself, push the limits, explore opportunities and aspects of your potential; to meet difficulties as they arise, and to grow beyond them.