Starting from exam (XD, all the fun started during exams, ha, lazy me), from 3x3x3 to 5x5x5, i got certain improvement.
If you are keen to keep in touch with this blog, you will notice that I brought my first 5x5x5 (rubik's brand @ toyrus) during my chinese language exam.
Talking about average:
3x3x3 : 49s, PB: 35s
5x5x5 : 4m50s, PB 4m24s
I learned very little algs and though I will learn all of the PLLs by this month, and hopefully all OLLs by this summer.
Cheers.
If you are interested, you can also have a look at my first youtube vid, which is on solving the professor cube.