You should be happy of yourself. because you have made some changes to your life and who you are but you never changed your personality. Yeah you should be proud of yourself because you have growth a progress in your dreams and more. you should forgive yourself for the mistakes you have made in the past. You should have a fresh new start on your future. Yeah things that was a challenge when you where a kid or a teenager should not be a challenge to you nomore sometimes should be a lot easier now that you are a adult. So yeah you might so guides on something but it all ok. So yes you should celebrate all your challenges and change or fears and more you have achieved over all the years.