I am 39 and had this conversation the other day.
I know lots of people who feel they have visibly aged during the pandemic.
I know for me, its because I have fallen into bad habits. I used to always have a bottle of water with me. I realised I rarely drink water now the kettle is close by and drink loads of tea and coffee.
I am less active and haven't been doing alot of the things that I used to look after myself. So it could be, in part, that.
I have started working the good habits back in. But we can't put off aging forever. Is there anything you could do to give yourself a boost?
Take up a hobby? Do you exercise? Even something a small as a new outfit or getting your hair done or hair colour change, may give you a small boost while you come to terms with it.
Also, I find make up, hair colour, clothes colour and style needs to change as we get older. If you wear make up an update may help.
Sorry if non if my advice will work for you.