How do simple questions always turn into "TKD sucks" or "Tang So Do is the latest McDojo art", etc.?????
Martial arts are like everything else in life. You get out f it what you put into it. PERIOD!!!!!!
Stop beating yourself with negative talk like I hate being Korean American. You can't change that fact and you will never change the mindset of narrow minded ignorant people. But, you can continue to train hard until YOU think you're ready for the next belt and until YOU feel your ready to advance because you know that you have become proficient in the techniques required to pass. If you look at every educational setting that you've been in, i'm sure you'll remember that some people were at the top of the class and some were at the bottom. Does that mean that those at the bottom didn't deserve to pass, even though they met the class requirements? Same thing goes for advancing belts. Not everyone is the A+ student, but those who work hard should AND meet the requirements should still advance.
As far as one style being weaker than another (as posted by whomever - refering to the Tang So DO comment) it's not the Style, it's the stylist. For example , If you drive a vehicle for 8 hours everyday and I drive for 8 minutes every 6 months, who do you think will be more proficient at driving?? The same thing goes for the arts. If I spar, do bag work, lift weights run and everything else needed to excel and someone else just goes through the motions, who do you think the better martial artist will be???!!!!
Think about this and live it. You have to work hard enough for the MA to become part of you. Mushim.
Forget about the losers who bring you down because they have some deep seeded insecurity. Know what you want and do whatever it takes to reach your goal. This is the true benefit of martial arts. The confidence gained by succeeding via hard work.
Good luck and TANG SO!