I never worked with Crakrevenue (I think I joined them back then and found out my account got disabled due to inactivity or something, but that’s another story). That being said, the idea is always the same—don’t try to reinvent the wheel, just find what’s already working and promote that.
How? Start by filtering offers by Network EPC. Focus on the highest EPC offers that don’t require too many actions to convert (e.g., simple lead submits vs. credit card trials). That’ll give you better chances, especially with paid traffic.
If you want to stick with Crakrevenue, great. Otherwise, you can explore other offers using OfferVault—then verify the network’s reputation on Affpaying and also by Googling:
network_name site:blackhatworld.com/
That'll give you honest reviews from other affiliates.
Good luck with your journey!