Is there a chance of winning a criminal lawsuit without a lawyer?

If it is a case with clear facts and uncontroversial nature, there is really no need to hire a lawyer, especially some low-level lawyers who talk nonsense and encourage you not to plead guilty, so that the circumstances of surrender and confession that could have been given a lighter sentence are gone. What you have to do at this time is to respect the facts and confess. If it is theft, fraud and other crimes against property, try to return the stolen goods in full, and then appropriately punish them lightly; If there is a victim and an understanding can be reached, a lighter punishment may be given appropriately. In traffic accidents, intentional injuries and other personal injury cases, it is more important to obtain the understanding of the victim, which is basically directly related to whether probation can be given. What's more, many lawyers like to submit to the court. Character evidence is what units, neighborhood committees and neighbors prove that this person is excellent, or that this person's family conditions are not good, young and old, and so on. Speaking of which, I feel it is quite difficult to be a lawyer. For cases with clear facts and uncontroversial nature, something must be done to collect money. As long as you make up for it with these, it's basically useless. Is there any crime or administrative punishment?