diff --git a/app/controllers/users/registrations_controller.rb b/app/controllers/users/registrations_controller.rb
new file mode 100644
index 0000000..7ee8bf6
--- /dev/null
+++ b/app/controllers/users/registrations_controller.rb
@@ -0,0 +1,19 @@
+class Users::RegistrationsController < Devise::RegistrationsController
+  protected
+  
+  def update_resource(resource, params)
+    # Wenn kein Passwort gesetzt werden soll:
+    if params[:password].blank? && params[:password_confirmation].blank?
+      resource.update_without_password(params.except(:current_password))
+    else
+      super
+    end
+  end
+  
+  def configure_permitted_parameters
+    devise_parameter_sanitizer.permit(:account_update, keys: [
+                                                               required_hours_matrix: {},
+                                                               weekly_target_matrix: {}
+                                                             ])
+  end
+end
\ No newline at end of file
diff --git a/app/models/user.rb b/app/models/user.rb
index 837a9c7..f475e72 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -17,8 +17,8 @@ class User < ApplicationRecord
       [typ, ENTRY_ARTEN.to_h { |art| [art, default_hours_for(typ, art)] }]
     end
     self.weekly_target_matrix = {
-      "propädeutikum" => { "Praktikum" => 12, "Selbsterfahrung" => 1, "Supervision" => 1 },
-      "fachspezifikum" => { "Praktikum" => 10, "Selbsterfahrung" => 2, "Supervision" => 2 }
+      "propädeutikum" => { "Praktikum" => 12, "Selbsterfahrung" => 0.25, "Supervision" => 0.25 },
+      "fachspezifikum" => { "Praktikum" => 10, "Selbsterfahrung" => 0.25, "Supervision" => 0.25 }
     }
   end
   
diff --git a/app/views/devise/registrations/edit.html.erb b/app/views/devise/registrations/edit.html.erb
index b63826c..8ece3e0 100644
--- a/app/views/devise/registrations/edit.html.erb
+++ b/app/views/devise/registrations/edit.html.erb
@@ -1,5 +1,5 @@
 <h2>Profil bearbeiten</h2>
-
+<%= devise_error_messages! %>
 <%= form_for(resource, as: resource_name, url: registration_path(resource_name), html: { method: :put }) do |f| %>
   <div class="mb-3">
     <%= f.label :email, "E-Mail", class: "form-label" %>
@@ -35,17 +35,34 @@
     </tbody>
   </table>
 
-  <h5>Wöchentliche Zielstunden (weekly_target_matrix)</h5>
-  <% ["propädeutikum", "fachspezifikum"].each do |typ| %>
-    <% ["Praktikum", "Selbsterfahrung", "Supervision"].each do |art| %>
-      <div class="mb-2">
-        <%= label_tag "user[weekly_target_matrix][#{typ}][#{art}]", "#{typ.capitalize} – #{art}" %>
-        <%= number_field_tag "user[weekly_target_matrix][#{typ}][#{art}]",
-                             current_user.weekly_target_matrix.dig(typ, art),
-                             class: "form-control", step: 1 %>
-      </div>
+  <h5 class="mt-4">Wöchentliche Zielstunden (weekly_target_matrix)</h5>
+
+  <table class="table table-bordered">
+    <thead class="table-light">
+    <tr>
+      <th>Typ</th>
+      <th>Art</th>
+      <th>Zielstunden / Woche</th>
+    </tr>
+    </thead>
+    <tbody>
+    <% User::PRAKTIKUMSTYPEN.product(User::ENTRY_ARTEN).each do |typ, art| %>
+      <tr>
+        <td><%= typ.capitalize %></td>
+        <td><%= art %></td>
+        <td>
+          <%= number_field_tag(
+                "user[weekly_target_matrix][#{typ}][#{art}]",
+                current_user.weekly_target_matrix.dig(typ, art),
+                class: "form-control",
+                min: 0,
+                step: 0.25
+              ) %>
+        </td>
+      </tr>
     <% end %>
-  <% end %>
+    </tbody>
+  </table>
 
   <hr>
 
diff --git a/config/routes.rb b/config/routes.rb
index 3343bb8..2dacea7 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -1,14 +1,17 @@
 Rails.application.routes.draw do
-  resources :entries
-  resource :user_goal, only: [:update]
-  root 'entries#index'
-  devise_for :users
-  # Define your application routes per the DSL in https://guides.rubyonrails.org/routing.html
-
-  # Reveal health status on /up that returns 200 if the app boots with no exceptions, otherwise 500.
-  # Can be used by load balancers and uptime monitors to verify that the app is live.
-  get "up" => "rails/health#show", as: :rails_health_check
-
-  # Defines the root path route ("/")
-  # root "posts#index"
+	resources :entries
+	resource :user_goal, only: [:update]
+	root 'entries#index'
+	devise_for :users, controllers: {
+		registrations: 'users/registrations'
+	}
+	
+	# Define your application routes per the DSL in https://guides.rubyonrails.org/routing.html
+	
+	# Reveal health status on /up that returns 200 if the app boots with no exceptions, otherwise 500.
+	# Can be used by load balancers and uptime monitors to verify that the app is live.
+	get "up" => "rails/health#show", as: :rails_health_check
+	
+	# Defines the root path route ("/")
+	# root "posts#index"
 end