The thought of retirement gives me extreme anxiety.
A piece of advice. I spent 30 years working for the Social Security Administration and dealt with uncountable numbers of new retirees. Probably authorized a billion dollars or more in total lifetime benefits of retirement claims during that period.
Seriously, you aren't alone feeling like that.
I cannot tell you the number of folks that I dealt with over the years that retired, then just had to go back to work because they literally, mentally and physically, couldn't handle retirement. They were used to getting up, drinking their coffee, and heading to a daily work environment where they were respected, had colleagues that they liked, and were doing things they loved and still wanted to do. After they retired, even if financially secure, all many of them had to do was ....nothing, because that was what they had outside of their jobs.
So, if you are happy doing what you do, don't sweat it as retirement isn't a requirement. In the meantime, as a hedge, begin planning what you would like to do after retirement to avoid that situation. If you are married, obviously your significant other will be very involved in that process......
I promise from my own personal experience if it comes time to retire, you will truly know it.