we all have been in that situation whether to keep going or to give up.
not to give up is a very good trait of personality, it is a sign that you are self motivated and that you have a strong wish to succeed. but on the other hand, giving up of something that is not good for you is a very smart move as well.
i'm at that moment where i'm not sure if i should keep forward or just give up and try something different on one specific issue.
what about you?? have you ever had to face this dilemma?? let me know :))