right now since my budget is so small $80.00 a day, what i was planning to do is only test 1 ad group at a time. for example i tested ad group 1 today, i found out what converted and deleted non converting keywords so now this ad group is profiting, 30$ a day, so now all i need to do is let it run and get lower cpc's. my question is , since that ad group is good, can i pause it for tommorrow and focus my $80.00 on another ad group and test it. or will pausing it, make it go bad again? i dont want to run the good one and test the bad one because the good one will just eat up my budget and i wont be able to accurately test the one group.
It is better that you test all your ad groups at a time, so that you will see which one works better and brings profit to your business. And yes, you can pause your one ad group and test the other one.