Thanks for the reviews guys. :) I'll tone down her just-above average knowledge in martial arts and just make it so she knows how to punch and kick properly then.
As for your worries about OP-ness Mr Pink, her powers and weaknesses have stated that if she's only holding back something not all that powerful - such as small to medium caliber bullets - then she can hold them off indefinitely (Using that term, I meant unspecified rather than unlimited, as through personal history, Roze is unsure exactly how long she can hold off small objects; she just knows she can do it for a while without providing much stress. However, I'll change it from indefinitely to unspecified.)
The matter of the fact is, she could stop anything with enough effort I suppose - but she doesn't have the mental or simple physiological strength to do so. As stated, keeping it up under enough duress for too long creates negative consequences for herself; in worst case scenarios, including death. I assure you that thanks to these weaknesses, she can't be over-powered. The simple fact that her weak human body can't deal with too much of it shows that she can only build up a small amount of resistance to the after effects.