Wicked Gem use of after edit page

I have a user model and boat model. They are associated. The thing is, when user creates a boat, the #create action redirects user to #edit page. In #edit page I have a long form that I want to use for wicked. Every video I watched, they used wicked gem after #create action. So I do not know if I can use it for the edit page. I have tried but encounter with an error.

boat_steps controller

 class BoatStepsController < ApplicationController
        include Wicked::Wizard

        steps :pricing, :description, :picture

        def show
            @boat = current_user.boats
            render_wizard
        end
    end

Boats controller

class BoatsController < ApplicationController
  before_action :logged_in_user, only: [:new, :show, :edit, :update]

  def new
    @boat = Boat.new
  end

  def create
   @boat = current_user.boats.new(boat_params) if logged_in?
    if @boat.save
      #flash[:success] = "Continue from here"
      render 'edit'
    else
      render 'new' 
    end
  end

  def show
    @boat = Boat.find(params[:id])

  end


  def edit
    @boat = Boat.find(params[:id])
  end


  def update
     @boat = Boat.find(params[:id])
    if @boat.update_attributes(boat_params)
      flash[:success] = "The Boat Saved"
      redirect_to boat_steps_path(@boat)
    else
      render 'edit'
    end
  end


  def update_years
  # updates year and model based on brand selected
  brand = Brand.find_by_name(params[:brand_name])
  # map to name and id for use in our options_for_select
  @years = brand.years.map{|a| [a.name, a.name]}.insert(0, "Select a Year") #use a.name here instead of a.id
  @models   = brand.models.map{|s| [s.name, s.name]}.insert(0, "Select a Model")#use s.name here instead of s.id
  end

  def update_models
  # updates model based on year selected
  year = Year.find_by_name(params[:year_name])
  @models = year.models.map{|s| [s.name, s.name]}.insert(0, "Select a Model") #use s.name here instead of s.id
  end



private

    def boat_params
      params.require(:boat).permit(:brand, :year, :model, :captained, :boat_type, :daily_price, :boat_length, :listing_tagline, :listing_description, :boat_category, :hull_material, :mast_material)
    end


end

The edit page works fine. Then when I click next to get the pricing step I get error, it might because of the boat_steps controller' s #show action or the from in the pricing.html.erb. But I could not find a solution. Here is the pricing.html.erb

<h2>Pricing</h2>

<%= form_for @boat, url: wizard_path do |f| %> <!-- HERE PROBLEM-->
      <%= f.radio_button(:captained, "Captained") %>
      <%= f.label(:captained_captained, "Captained") %>
      <%= f.radio_button(:captained, "Bareboat") %>
      <%= f.label(:captained_bareboat, "Bareboat") %>

      <%= f.label :daily_price, "Daily Price (TL)" %>
      <%= f.number_field :daily_price, placeholder: "Ex. 180.00", max: '1000.00',  class: 'form-control' %>

      <%= f.submit "Next", class: "btn btn-primary" %>
 <% end %>

So I get this error;

NoMethodError in BoatStepsController#show
undefined method `to_key' for #<Boat::ActiveRecord_Associations_CollectionProxy:0x007f85a5291fa8>

Or should I use wicked after #create action, instead of #edit action?