Blog website - I can see all posts and user can only see their own posts!

Hey I am creating a blog website and I would like to make it so that I can see all the posts and the user can only see their own. How do I do that?

My CreatePostController:

<?php

namespace App\Http\Controllers;

use App\Models\Post;
use App\Models\Comment;
use Illuminate\Validation\Rule;

class CreatePostController extends Controller
{
    public function index()
    {
        return view('create.index', [
            'posts' => Post::paginate(50)
        ]);
    }

    public function create()
    {
        return view('create.create');
    }

    public function store()
    {
        Post::create(array_merge($this->validatePost(), [
            'user_id' => request()->user()->id,
            'thumbnail' => request()->file('thumbnail')->store('thumbnails')
        ]));

        return redirect('/');
    }

    public function edit(Post $post)
    {
            return view('create.edit',
            ['post' => $post]);
    }

    public function update(Post $post)
    {
        $attributes = $this->validatePost($post);

        if ($attributes['thumbnail'] ?? false) {
            $attributes['thumbnail'] = request()->file('thumbnail')->store('thumbnails');
        }

        $post->update($attributes);

        return back()->with('success', 'Post updated!');
    }

    public function destroy(Post $post)
    {
        $post->delete();

        return back()->with('success', 'Post deleted!');
    }

    protected function validatePost(?Post $post = null): array
    {
        $post ??= new Post();

        return request()->validate([
            'title' => 'required|min:3|max:32',
            'thumbnail' => $post->exists ? ['image'] : ['required', 'image'],
            'slug' => ['required', Rule::unique('posts', 'slug')->ignore($post)],
            'excerpt' => 'required',
            'body' => 'required',
            'link' => 'nullable|url',
            'category_id' => ['required', Rule::exists('categories', 'id')]
        ]);
    }
}

and my Post index:

<x-layout>
    <x-setting heading="My Blogposts">
        <div class="flex flex-col">
            <div class="-my-2 overflow-x-auto sm:-mx-6">
                <div class="py-2 align-middle inline-block min-w-full sm:px-6 lg:px-8">
                    <div class="shadow overflow-hidden border-b border-gray-200">
                        <table class="min-w-full divide-y divide-gray-200">
                            <tbody class="bg-white divide-y divide-gray-200">
                                @foreach ($posts as $post)
                                    <tr>
                                        <td class="px-6 py-4 whitespace-nowrap">
                                            <div class="flex items-center">
                                                <div class="text-sm font-medium text-gray-900">
                                                    <a href="/posts/{{ $post->slug }}">
                                                        {{ $post->title }}
                                                    </a>
                                                </div>
                                            </div>
                                        </td>

                                        <td class="px-6 py-4 whitespace-nowrap text-right text-sm font-medium">
                                            <a href="/create/posts/{{ $post->id }}/edit" class="text-red-500 hover:text-red-600">Edit</a>
                                        </td>

                                        <td class="px-6 py-4 whitespace-nowrap text-right text-sm font-medium">
                                            <form method="POST" action="/create/posts/{{ $post->id }}">
                                                @csrf
                                                @method('DELETE')

                                                <button class="text-xs text-gray-400">Delete</button>
                                            </form>
                                        </td>
                                    </tr>
                                @endforeach
                            </tbody>
                        </table>
                    </div>
                </div>
            </div>
        </div>
    </x-setting>
</x-layout>