A level 5 can easily level in a few minutes by simply fighting monsters.

Thanks

Dangit i cant kill anything strong cause i have a crap weapon

you can go to "items" (found in the menu) at 

http://larkinorguide.com

 to look up better items, and how to make them (or just go buy them from the market).

--jason

Why does magic level take so long to raise?

because this game is not meant to be easy.  you have to work at it to get a good character.
--jason