You would think that around here Spanish would become a 2nd language by osmosis. You did good learning at age. Everything I have read points to
mucho difficulty in learning a 2nd language in later years.
One thing I am aware of and that would really hamper me is the speed in which Spanish is spoken. Yes, there are some English speaking folks that talk really fast and one becomes aware of that immediately. Seems the norm in Spanish. I'd never get up to speed.
I speak at an average speed
AFAIK, and really slow speakers annoy me. I've spent some time in the Southern states and they do take their time. Too fast is OK but the Spanish speaking people do it better.
What is the rate of speaking in Italian? We English speaking folks are rather slow to the rest of the world that speaks from the Latin root.
Of course dialect and accent vary in all language. I'm just speaking in general.