It is the way..
It's always been you get attacked by and then matched with higher bases when attacking as you level up. But as you get more proficient with troops and level them, and your base, up you will be the higher guy one day and have better defenses. Check other bases for good layouts.
Tatooine and erkit are heavy rebel planets. Try green planets like Dandoran, Takodana, and Yavin for next planet unlock.