turn signal

I recently replaced bulbs of the cluster but at r I replaced noticed all my lights worked except the turn signal did flash it worked in the exterior but they didn’t flash in the cluster? Looking for help or do I need to put old bulbs back in in just turn signals ?

Had a minor wreck that dented the front fender quarter panel and 2 lighting areas. How easy is it for a non-mechanic to remove and replace the fender, front bumper, and the 2 lights? Pic attached I found the 2 lighting assembly components new for about $6 and $15 each. I see the fenders...