Yes, you can say “talking from experience,” but “speaking from experience” is more natural and commonly used.
“Speaking from experience” implies that you are sharing wisdom gained from personal experience in a confident or authoritative way.
“Talking from experience” is less common but can work in informal speech. It might sound more like casual conversation rather than authoritative advice.
Tip:
Use “speaking from experience” for formal or serious situations and “talking from experience” in relaxed, conversational settings.