Some of us do NOT fit into regular jobs, and it is the job of large companies not to be fair, or even to pick the best quality, but in fact their job is to reject most people according to their opinions; so we need people like you to help share our arts with others, as part of an organic market system.
Being self-employed it is much harder to handle difficult clients that are unappreciative and do not want to pay; regardless of whether they could or could not do a better job if they did it themselves. Some let you waste hours of time, before they say they will do it themselves or hire someone else. Often because they refuse to talk on the phone about negotiating problems, because they do not have the patience to compromise their willful egos, or they just dont care. Some people do not know what they want, but when you show them, they know they dont want what you made. Control freak clients are not always right, they are to be avoided unless they pay upfront.
If you are confident that you know your limits, insist on taking the time to explain everything to clients up front. Some will lie and say they understand, when they really do not; but you will find out later. As soon as it becomes clear time-after-time, or from a major power-play that things could end up in law-suits in the court-room with lawyers and judges, it is time to end work as fairly as possible.
So please sympathize with those of us that need to maintain our own limits, and cannot abide the authority of others, unless pay is substantial. Share our work with others, as it is the only way to by-pass the cut-throat system. Otherwise, we fall through the cracks of civilization.
As some authors of ethical business suggest, when a potential client turns us down, imagine that they have just paid 20 bucks and warned us not to work with them. In this way, we can thank them for saving us gas money and stress in the future. It is often best to “Wish them well” (Rush), and “Carry on” (Kansas).