Don't expect to be good at maths or understand things straight away. Be patient and persistent. Rome wasn't built in a day, but they worked on it every single day. 

Work on your weaknesses until they are your strengths and work on your strengths until they are second nature.

Practice makes comfort. Expand your experiences regularly so every stretch won't feel like your first.

Good mathematics is not about how many answers you know... It is about how you behave when you don't know.

Nothing is impossible if you want it badly enough. Impossible = I'm possible.

It is never too late to turn an unproductive day into a productive one.

Hard work beats talent when talent doesn't work hard.

The bad news is time flies, the good new is that you're the pilot.

Fall down seven times, stand up eight.

Skills are built not born.

Success is not final, failure is not fatal.  It is the courage to continue that counts.

Just stick with it, what seems hard now will one day be your warm up.

You're not in competition with anyone but yourself. Outdo your past, not other people.

There is no elevator to success, you have to take the stairs.

I fear not the man who has practiced 10,000 kicks once, but I fear the man who has practiced one kick 10,000 times.