It was hard to choose what you really want, more so, it was harder to start again when you are in your late 20s. There will be times you'll overthink things or wonder if you made the right decision. But just like what they said, do it, just do it, even if it is hard and you are scared to fail. You will never know what will happen; either you will win, or you will learn. Just fight for the things that you want and will make you happy. If you fail, learn from it and try again until you achieve your goal. Because, along the way, you will discover many things about yourself and the things that will make you happy.
But for now, feel the emotions that you are feeling. Leave slowly and be happy for the small things that are happening to you. Big or small, always celebrate it. And if you fail, cry and learn from it because that is how life is.
And always be kind to yourself, because if you're kinder to yourself, it will show to other people. And don't forget to thank Him.