I feel you, buddy.
It is okay to keep pursuing what you love to do. And financial security is also important, we have to eat right

Maybe you can do it one step at a time. Happiness can't be achieved in one night, right. If it can then it's not true happiness. You have to work for it. Who says it will be easier than your day job?
You can start by taking a small time in your weekend or at night, start doing the project you love and makes you happy. Take it serious gradually. Look for how can you make this hobby profitable for you. It may bring you a little adventurous feeling you know like you have a secret project behind your day job. A little spark of joy you can remember when you burn out at the office. Don't think that your current job is all wasted. There are always some skills that you get from it. You have survived for 3 years!
Changes do not always happen in the blink of an eye. Along with the process, you will find out what is best for you.