I'm 50 and I have my ADHD assessment in a month. I'm in software too similar to OP. for me the impulsiveness has gotten worse where i react with deregulated emotional outbursts that are affecting me and my family. I've got a bunch of processes to handle a lot of the symptoms but impulsiveness was never something I noticed I had until recently. I've always known i don't have much of a filter, blurting out whatever is forefront in my head.
I've asked a number of my medicated friends and I'm told the medication does help with the emotional impulsiveness, providing the time to filter.
but it does feel weird doing this at 50 🤯