u/Ecstatic-Platypus556 — reddlx

I see lots of end to end ad campaign launcher platforms which analyse the competitor's ads, find the winning ads and gives recommendations. I would like to know following things,

Does this really works and helps?
Do you follow what worked for competitors or do you follow what worked for you in the past while designing your next campaign?
If you follow what worked for you in the past, how do you keep the track of all past successful and failed campaigns? spreadsheets? campaign management tools?
How do you normally decide, what should be your next campaign?
Do you have "Cold start problem" at every new campaign?

Looking for some feedback. Thanks!