But I will say this. At several times during the race I did think "This is hard", and "Ouch", and "Can I really keep going?". Which coincidentally is similar to my sentiments on many occasions as an artist/illustrator/designer. Yes, the three thoughts have crossed my mind many times during the often difficult career path I have chosen.
So, if you are considering either running a marathon OR launching your art career, just know you will find it difficult, sometimes it will hurt and you will question whether you can keep going down that path.