Problems Using the Gianni Paint Kit for Countertops?

I just finished my cupboards and sad to say they look bad. I used the Gianni kit for countertops in chocolate brown. On the last section there were so many dry spots even though we thought we had followed instructions carefully. We went over it again to try to eliminate the lap lines. Now we have milky countertops. Please help!

We would sand, prime, and do that section again, but have run out of brown paint in the last step. We may have enough of the other two. We already have bought two kits as we needed extra brown, so we redid the whole thing to have it all look the same. The video says to back roll the final step and the instructions say not to. This is confusing as my husband did it one way and I the other.

I found it a lot more challenging than I would have thought. I loved the end result until we ran into this problem. Now how can we fix it after spending $200? I don't know if I would recommend this or not. I bought the kit in Moncton and since we live a distance away we had to also pay for shipping the second kit. I hope you can help us out somehow. Frustrated!

Anita