You only lose your “free spirit” and creativity if you let it go, if you listen to other people who don’t value it. Don’t stop looking at the world the way you do, there is inspiration in everything. As long as you set aside time to tend to it, you can work hard at a “real” job and come home create the most beautiful art. It would be ideal to find a job where you can use and grow that part of you, but that can be difficult in an entry level job and especially with the competition there is for jobs. I can only think of all of the creative minds that were able to create some great work even though they were in dead end jobs, Einstein worked in a patent office, J.K Rowling, if you look into the history you will find many people that lived extraordinary lives and were still seen to have real jobs and there are even more every day people. Its only normal to feel anxiety over it, it feels as if a very important part of you is being killed, but as long as you work to keep that part of you alive it will still be there!