hey man, I myself did not do a campaign for now, but check this video at 3:54 time mark: https://go.twitch.tv/videos/200492753
Its the creator of adom giving a lot of info about his indiegogo campaign.
One thing that might be wrong on yours (from what I heard in general) is that all or nothing campaigns get a much higher success rate.
Hope it helps! Don't throw the towel!