How to know? continue or leave?

Hi guys :smiley:
i have a question for all desingers and coders.
how to know you aren’t a good designer or good coder :asleep: .
i mean if you lean a lot of things and can’t get it so you think there is no way to be good coder or desinger :frowning: what you have to do if you get this feel.
leave your career or try again if you love it.
i don’t know what is the right dicision :(.
ca anyone talk to me to get the right way or if someone face this before till me how did he solve it :h:
thanx :smiley: