I took an EtG and worry about the results, my sample was barely an 1/8 inch in the bottom of cup. Does this at all help my chance of passing it?

I'm surprised your sample was accepted. Minimum specimen requirements are generally 20 mL (about 4 teaspoons, US) being sufficient for retest and confirmatory procedures if required. Some labs require 30 and yet others 40 mL. It must be divided into two portions (aliquots)(20 is minimum for Redwood Toxicology, #5). The collector should have questioned the amount.

If the specimen is adequate and accepted for testing the initial amount is of no consequence to the result.

If the specimen is too little it will be returned as untestable and you will have to provide another. Of course the beer that you drank will be long gone!

With all that said, no a small amount or a large amount does not make it any easier to pass