Wanting something is the easy part. Of course, you have had to decide what it is that you want and why. Once that is all done, here comes the hard bit, you have to actually do the thing that is not something that you may enjoy. Something that makes you uncomfortable. Not in terms of morally and such. Just things that you rather not do if you had a choice. Whatever that hard thing is varies for different individuals. Not overcoming it is usually what is stopping someone from achieving the desired success. It might stem from fear of being made fun of or looked down upon or even perhaps getting physically dirty. That said, you do have a choice regardless. The question is, how bad do you want it?