[Rails] can't config profile page to update data forms and save

I am new to Rails and I am setting up the user profile and adding fields to it for users to add details to their profile such as career, about me, height, religion, etc. This information is completely different from the registration options (account settings). As of now the profile fields are being recognized as the registration fields, which is incorrect. When I click "Update" on profile page, it redirects to registration page. So the profile page with all those fields have no value atm. The system is not recogonizing that those values should be saved to the user profile. How it should work is when user goes to their page at /users/4 it will present forms for all their profile details. After selecting answers for each options, the user clicks the button "Update" and the profile information saves. The complete opposite is happening as of now, user clicks "Update" and it directs User back to the index (which is the register page) and it acts as if the previous page the User was on (profile page) was trying to fill out information from the registration form...which is incorrect.

Users_controller file (can also find all this information on https://gist.github.com/pwz2k/5047974) :

class UsersController < ApplicationController

  def new

    @user = User.new

  end

  

  def create

    @user = User.new(params[:user])

    if @user.save

      UserMailer.registration_confirmation(@user).deliver

      session[:user_id] = @user.id

      redirect_to root_url, notice: "Thank you for signing up!"

    else

      render "new"

    end

  end

  

  def show

    @user = User.find(params[:id])

  end

  

    def edit

      @user = User.find(params[:id])

end

  

  def index

    @users = User.all

  end

  

  def destroy

     User.find(params[:id]).destroy

     flash[:success] = "User deleted."

     redirect_to users_url

   end

  

def update

    @user = User.find(params[:id])

    if @user.update_attributes(params[:user])

      flash[:success] = "Account updated"

      redirect_to @user

    else

      render 'edit'

    end

end

end

show.html file:

<h1><%= @user.username %></h1>

<h2>Basics</h2>

<%= form_for(@user, :url => {:action => :create}) do |f| %>

<div class="field">

<%= f.label :height %><br/>

<%= f.select :about_me, [['Feet', nil], '4', '5', '6'] %>

<%= f.select :about_me, [['Inches', nil], '0', '1', '2', '3', '4',

'5', '6', '7', '8', '9', '10', '11'] %>

</div>

<div class="field">

<%= f.label :children %><br/>

<%= f.select :children, [['Do you have or want kids?', nil], 'Yes, they live with me', 'I want kids now', 'I want one someday', 'Not for me']%>

</div>

<div class="field">

<%= f.label :religion %><br/>

<%= f.select :religion, [['What is your faith?', nil], 'Agnostic', 'Atheist', 'Christian', 'Catholic', 'Buddhist', 'Hindu', 'Jewish', 'Muslim', 'Spiritual without affiliation', 'Other', 'None', 'Prefer not to say'  ]%><br/>

<%= f.select :religion, [['How important is this to you?', nil], 'Very Important', 'Somewhat Important', 'Not Important']%>

</div>

<div class="field">

<%= f.label :career %><br/>

<%= f.text_field :career %>

</div>

<div class="field">

<%= f.label :education %><br/>

<%= f.select :education, [['What is your education level?', nil], 'High school', 'Some college', 'Undergraduate', "Bachelor's", "Master's ", 'PhD', 'Business school', 'Law school', 'Medical school' ]%>

</div>

<div class="field">

<%= f.label :ethnicity %><br/>

<%= f.select :ethnicity, [['What is your ethnicity?', nil], 'Asian', 'Black', 'Biracial', 'Indian', 'Hispanic/Latin', 'Middle Eastern', 'Native American', 'Pacific Islander', 'White', 'Other' ]%>

</div>

<%= f.label :user_drink %><br/>

<%= f.select :user_drink, [['How much do you drink?', nil], 'Often Drinks', 'Sometimes drinks', 'Never drinks', 'No comment' ]%>

</div><br/>

<%= f.label :user_smoke %><br/>

<%= f.select :user_smoke, [['How often do you smoke?', nil], 'Often smokes', 'Sometimes smokes', 'Never smokes'] %>

</div>

<div class="actions"><%= f.submit %></div>

<h3>About Me</h3>

<%= form_for @user do |f| %>

<div class="field">

<%= f.label :about_me %><br/>

<%= f.text_field :about_me %>

<div class="actions"><%= f.submit %></div>

<% end %>

<% end %> 

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