“Do or do not — there is no ‘try'”. This, if you don’t recognize, is a quote from Yoda, the wizened green guy from the Star Wars movies. I live by this quote, because I believe that if one gets the option to ‘try’, they will give themselves an excuse not to achieve.

In real life, I do not always succeed. Nobody does, but I don’t look at my efforts as ‘trying’. I have done my best, with no excuses.
I don’t ‘try’ new things — I do new things. Sometimes I do them very badly, but I give them my best.
I see Yoda’s quote as an impetus not to do things half-assed.