I was 41 when I begun. I remember when I first realised how long this work was going to take, that I'd be to old to even benefit from the work.

I'm 53 now. Still in T. And realise it is the journey, not the destination. Little & big things have changed along the way. Taking it in small bites had been my experience. Well worth it. No matter anyone's age. And to be fair, I think being older in therapy is actually more beneficial.
When younger I didn't have enough experience of 'me'. I do now.