If your current job is the reason you cannot live out your passions because you are currently a slave to your employer then you should find a new employer. If you are not doing what you love to do in the first place then it won’t matter if you find another employer.
Your job may be your livelihood but you need to work toward being happy with your life and successful. When your job is the reason you cannot be happy you won’t even be successful at your job. You won’t move up and you will despise it. It may be very hard to wake up every morning to go to work each day. Don’t you want to do something that you enjoy waking up in the morning each day for? You can and you have full control over this.