Very significantly. If you have no natural aptitude, no amount of practice will make you great. Proficient, maybe, fantastic, not likely. Try differents sports, Everybody is good at something. Don't get discouraged.
Wearing jewelleries might affect sports performance because you might hit someone with that jewellery
wearing proper sports clothes will highly affect your sporting ability... this will help you in lots of different ways aswell as stop you from swearing this will also help you not to conceed sweaty goals on FIFA!
Badly
It is possible for anxiety to affect a student's performance. It could affect their ability to concentrate.
Definitely not!
if you concentrate and don't swap mosquitoes you can do sports faster
Steroid's
Harder to breathe.
yes
It affects your concentration and the performance. If you're very anxious, you can not focus or concentrate on work, school, and sports.
Well if you are drunk then it can affect your co ordination and spatial awareness
pressure, diet, depression