My idea for a series

Ok so this is probably a really complexed idea but it's been an ambition to write a series that the main characters don't seem to connect. It would be a 5 book series. In order of how they would play out:

SEEN

If Metal Was Human

Dimensional Dream

The Revenge of the River

Relearning Love

The ideas I have for each book are as follows (I will have detailed ideas and a summary for those who don't want to read):

SEEN: -A girl gets kidnapped to another planet and she must learn to trust the people around her or The Leader will kill her and destroy earth

_The culture will be inspired in part by Native American culture. Everyone on the other planet will have naturally odd colors of hair. They also will be more of a matriarchry except for the big leader he is a man. This is supposed to be odd. They also have a belief that if a women doesn't braid her hair then all the secrets she has will fall out of her head. So women without braids are not to be trusted. And women with short hair are believed to be women that hold no secrets. Men and women clothing will be a cloak like outfit that doesn't get in the way when you need to fight. This story will focus about on Senkina and her learning to find comfort in people.

If Metal Was Human: -A boy notices that something is wrong with him. His only soultion is in a time only he can access. He must figure out what it holds and find out if he can stop it.

_This one will focus more on Nicholas Charles's vourney that the future is as complexed as the past. He'll have a friendship with a girl and that friendship will be super wholesome. The plot will introduce us to is world and the future.

Dimensional Dream: -If you could stay in your dreams would you? What if you stayed? Well Andrew Lee is about to find out. He must decide before he has no choice.

_This one is more about the human expericence and how life can be worth living but if something drives someone away. They could stay away forever.

The Revenge of the River: -Elegance is given the chance to live out her dream but the river has other plans. Will the river destroy Elegance or will she uncover it's secrets?

_Basically this one is more horror like. This one is more on reflection on the past and how that can destroy you if you don't care for it.

Relearning to Love: -Samual James lost all his memories. Now he's tossed into this world where his memories hold the key. Though the whole world doesn't hang in the balance. His world does.

_ This one is all about family and how it isn't always the people you are related to. It also talks a lot about abusive relationships with parents.

Those are all my ideas. Should I keep trying?