First of all, your memory problems and sense of direction may be caused by surgery, but that doesn't mean you can't do other things. In fact, many people will find a new career or industry that suits them when facing difficulties.
Secondly, inferiority and self-doubt are common psychological problems, but they can be overcome by self-reflection, seeking professional help and positive action. You can try to communicate with your family and let them know your troubles and needs. At the same time, you can seek the help of psychological counselors, who can provide professional advice and guidance.
In terms of action, you can consider finding some occupations or industries that suit you. In addition to working in a factory, you can also consider some occupations that require creativity, craftsmanship or skills, such as handicrafts, housekeeping, customer service and so on. In addition, you can try to learn some new skills, such as computer programming and design, which is very popular in today's society.
Finally, it is important to go out bravely. Don't be afraid to try new things or new jobs. Going out to work or learn new skills with friends or fellow villagers can provide you with support and encouragement.
In short, you are not "useless", everyone has his own value and advantages. The key is how you look at yourself and find a career or industry that suits you. I hope you can overcome difficulties and find your own value and happiness. If you need more help, please do not hesitate to seek professional advice and help at any time. Wish you all the best!