You may be experiencing a mild case of burnout. Career capabilities and recognition often undulate based on many factors. Even when you think you're doing every

You may be experiencing a mild case of burnout. Career capabilities and recognition often undulate based on many factors. Even when you think you're doing everything right, it may be harder to do what you used to be able to do easily. I think that's a natural part of being human. Over the long haul, though, you will continue on an upward trajectory--assuming you continue to absorb new information and practice new skills. If it really is burnout, there are many resources for how to approach that. An important part, though, is taking a break. Surfing the Net doesn't help. You need time away. You'll know you're at least partway through it when you begin itching to try something new. Like many here, I went though similar periods in my career. You do get through it and you can definitely become a better developer over time, despite age. Assuming you like what you're doing and you want to improve, then the question is, "what to do?" Decide on something new that you want to learn. A new language, development environment, operating system, tool set, or whatever. Then pick a problem and work on it. Do it at home in your spare time, so there is no pressure and no expectations. You may not notice any immediate benefit, but you will be growing and improving. This is what makes the difference long term. Best of luck.