If you're good at Photoshop, you might want to try learning a Program like Fusion to Retouch video.

I just published a half hour course on everything you need to know to get started retouch video.
You can download a Commercial licence of Fusion for Free from Black Magic and Get learning how to use Vector Paint/Clone Animation to Retouch video.

Find My Fusion Course on Demand here.
https://vimeo.com/ondemand/90733

*boop*