what should i do??

i am confuse and unhappy now!! what do i mean is i can't concerntrate to the subject of general mathematics and felt very stress in this subject!

i never learn addition mathematics before and my modern mathematics also no good during my secondary school life. but i am study in university now, i have no choise because the course i am taking is about business stream, all is talk about the money and calculation.

i know i can't regret what i choose because other people just give me advise and the dicision was did by me. now i am standing on the cross road and still hesitating with the quetion "what i should i do"??

this is not biggest challenge for me, but i seem like no courage to cross it and defeat by myself easily! is that my strenght just like that?? never try never know ??

nobody can tell me what should i do.........