One challenge could be the lack of respect from others. Because you're the youngest, some might think you're not as capable or important. For example, the nobles might not take your opinions seriously when it comes to matters of the kingdom.
You might face the challenge of losing some of your original readers. People who liked the old genre might not be interested in the new one. Also, in terms of content, if you're changing from a children's genre to an adult one, you have to be careful about the level of complexity and maturity. You need to make sure the new elements fit well with the existing characters and their development.
There could be personal challenges as well. Maybe she has to make difficult decisions that go against her heart but are necessary for the good of the kingdom. For example, arranging marriages for political gain. Also, she may face challenges in maintaining her image as a strong and just leader. If she shows any sign of weakness, her enemies might try to take advantage.
It might make you more rebellious. Being the youngest prince, there could be a lot of expectations and rules imposed on you. You may start off as a character who rebels against these norms, which would be an interesting aspect of your development. For example, you could constantly try to prove yourself in a different way than what is traditional in the kingdom described in the novel.
Plumbers often face the challenge of working in dirty and cramped spaces. Sewers and small utility closets are common work areas. Also, they have to keep up with new technology and building codes. For instance, new regulations about water conservation may require them to install different types of faucets or toilets, which they need to learn about quickly.
One challenge could be gaining the respect of her older colleagues. They might not take her seriously at first because of her age.
One challenge could be the lack of a stable income at first. Programming often has more predictable pay, while writing a novel might not bring in money right away. Another is the different skill sets required. Programming is about logic and code, while novel - writing needs creativity and a good command of language. Also, you may face self - doubt as it's a highly competitive field and getting your novel noticed can be tough.
Jealousy from other love interests. They might see you as a threat and try to undermine you. For example, they could spread rumors about you to make the main character doubt you.
One challenge could be self - identity. He has to re - define who he is now that he is a girl. Another is social acceptance. People who knew him as a boy might have a hard time adjusting to the change.
You might have trouble coming up with unique and believable secret society rules and hierarchies.
They might face distrust from others. Since they were trained in an 'evil' environment, people may be suspicious of their motives and actions.