just follow each trace that you need to solder and scrape it there to expose the trace and yes if u completely destroyed it you have to go one by one
should be more careful next time taking your time saves you alot of headaches
example:
--------------(destroyed pad)
so you would
------(expose trace here)----(destroyed pad)
solder to where it says expose trace here and run your wires for each line that you messed up its not an easy thing to repair because its a ribbon and theres not alternate point but with time and patience it can be done