fetch_questions() is unable to see process_questions() from inside the $.get function()

What do I do?

class trivia {
    
    fetch_questions(){
        
        $.get( "/myurl/fetch.php?difficulty=" + this.difficulty + "&question_count=" + this.question_count + "&search=" + this.category, function( data ) {
                        
            this.process_questions();
                
        });
    }
    
    process_questions(){
        
        console.log("suck");
        
    }

    
}