Feeling so kuku

I am feeling dam kuku la.... remember guys when we are in poly we learn the circuit stuff.... those loop and nodal analysis... I totally just dun seems to remember a single thing about that.... so i am currently having a really hard time with it now..

I feel so kuku cause those Guys that go NS and back to school they seems to be able to get it but i just cannot.... lol.... feeling dam kuku..... ZZZZZZZZZZZZZzzzzzzzzzzzzzz