Normal mmr versus Ranked mmr

Sometimes I feel the need to take a break from ranked, i'm sure you all feel the same way too sometimes. However, recently what I have noticed is that the people I play with in normals have a much lower skill level compared to the people I play with in ranked. So if I want to practice a new champion I can never really play it at the level of where I stand in ranked, unless I spam ranked games with them.

Just a small problem any suggestions? :(