How to insert date into table in laravel

Hello,

I am trying to insert course date what I choose from my form to table. But there is no data inserted in my course_date column. My controller is like below.

    public function store(Request $request)
    {
        $validator = Validator::make($request->all(), [
            'title' => 'required|max:255',
            'description' => 'required',
            ''
        ]);

        if ($validator->fails()) {
            return redirect('courses/create')
                ->withErrors($validator)
                ->withInput();
        }

        $image= $request->file('feature_image');
        $image_path = Image::make($image);
        $set_img_path = time().$image->getClientOriginalName();
        $image_path->save( public_path().'/images/course/'.$set_img_path);

        $data = new Courses;

        $now = date('Y-m-d H:i'); //Fomat Date and time
        $now = $request->couese_date;
        
        $data['title'] = $request->title;
        $data['description'] = $request->description;
        $data['course_date'] = $now;
        $data['feature_image'] = $set_img_path;
        $data->save();
        return back()->with('status', 'Course Successfully Added');

    }

Here is my model

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Courses extends Model
{
    protected $fillable = ['title', 'description', 'feature_image', 'course_date'];
}

Any one can help me to fix this?