Even the best, most beautiful work you do today will not fix everything.
If the creative project that calls to you feels frivolous because it doesn’t feed or clothe anyone, do it anyway. The world needs more than just food and shoes.
Or perhaps the creative work that calls to you does feed people or give them shelter. Even then, after all your effort, someone else in the world will still be hungry, or lost, or homeless at the end of the day.
You are not required to right every wrong today. If doing so were possible for only one person, someone would have already done it.
Do what you can do. If we all do the part we are capable of, we will fix quite a lot.