When i began javascript i thought it was reaaaaally difficult ! But ... I'm like the best in all my class x) So no it's not difficult (in biology ...)
No no don't worry, i understand !!
I was afraid when i went to university because i was only 16 ;_; But it's cool ! New friends new things to leanr, everything is new !
I don't how it is in thailand but in France, it's quite interesting !