I cant seem to do anything well...?

i seem to be failing at everything I try. I am putting more effort into my hobbies than anyone and i always loose to other people. i try sport well football is out of the q my dexterity is terrible and i genrally find it dull, rugby although i am quite big im am in a team of people who are still better than me because of my low stamina. i try more layed back things like model making but once again my dexterity is crap so i cant paint. and there is a game you use them for and i had a go at that.. well its a ice game so naturally i fail at it i am loosing to ppl like 3 years younger than me and people who have just started playing. i have had an Xbox 360 for a few years and i suck at that (trust me im only okay at halo and im shiz at the rest of other games i own). and other hobbis i just dont seem to enjoy i mean i love these hobbies (bar football) but the fact i suck at them is sucking all of the fun out. so what can i do...i have been thinking about an instrument but once again dexterity. i had a go at writing yeah my handwriting is so bad -can read it so i had a go at typing it and i cant think of anything to do bar like a page...