Investing in personal comfort can be viewed as an investment in oneself, and can have positive effects on productivity, health, and overall well-being. While it may not have an immediate financial return, it can lead to long-term benefits in terms of improved mental and physical health, reduced stress levels, and increased motivation. Investing in yourself is very important, because in the future these investments will pay off.

I could advise you on how to fix this chair, but I think you should throw this chair away. I never buy used furniture because many sellers deceive us. When I buy new furniture, I keep the right to exchange the goods for new ones if they break down because of the seller. There are many stores where you can buy quality furniture for your home or office. I bought here: https://eurekaergonomic.com/ergonomic-office-desk-chairs/ . My chair is 2 years old, and it still looks like new. Think about it, man.