This is very true for me as well. Sometimes I’m just not winning on one side, so I try a few decks and try really refining what I’m doing to improve my game. I have found that sometimes I get myself locked into very bad ideas for my deck that need a different outlet. For example, Faust Noise probably doesn’t need Singularity, but it is a great card in MaxX.
There have also been decks that I never fully embraced. I played NEH fastro to my highest finish at an SC, but I never really loved the deck. I tried a few others until I settled on a PE deck that I really enjoyed.