Why new columns are not migrated, and relationships are not applied in Laravel?

I am working on a Laravel project with PhpMyAdmin and I am quite new to Laravel, I have created tables with models, and already migrated them, now I need to add new columns but when I add the columns and then migrate it shows that noting there to be migrated

Also same thin for the relationships, I applied 1-1 between 2 tables and migrated, but the database is not updated, and from time to time I got an error of duplicating session table as well, how to solve this?

Students table

<?php
    
    use IlluminateDatabaseMigrationsMigration;
    use IlluminateDatabaseSchemaBlueprint;
    use IlluminateSupportFacadesSchema;
    
    return new class extends Migration
    {
        /**
         * Run the migrations.
         *
         * @return void
         */
        public function up()
        {
            Schema::table('students', function (Blueprint $table) {
                $table->id();
                $table->string(column:"Name");
                $table->string(column:"Semester");
                $table->unsignedBigInteger('project_id')->nullable(false);
                $table->foreign('project_id')->references('id')->on('projects');
                $table->timestamps();
            });
    
        }
    
        /**
         * Reverse the migrations.
         *
         * @return void
         */
        public function down()
        {
            Schema::dropIfExists('students');
        }
    };

Projects table

<?php

use IlluminateDatabaseMigrationsMigration;
use IlluminateDatabaseSchemaBlueprint;
use IlluminateSupportFacadesSchema;

return new class extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('projects', function (Blueprint $table) {
            $table->id();
            $table->string("Title");
            $table->date("Start Date");
            $table->date("End Date");
            $table->date("Type");
            $table->integer("Duration");
            //$table->unsignedBigInteger("lecturer_id");
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('projects');
    }
};

Project model

<?php

namespace AppModels;

use IlluminateDatabaseEloquentFactoriesHasFactory;
use IlluminateDatabaseEloquentModel;

class project extends Model
{
    use HasFactory;
    public function getStudnet(){
        return $this->belongsTo('Appproject');

    }
}

Student model

<?php

namespace AppModels;

use IlluminateDatabaseEloquentFactoriesHasFactory;
use IlluminateDatabaseEloquentModel;

class student extends Model
{
    use HasFactory;

    public function getProject(){
        return $this->hasOne('Appproject');

    }
}