I have social anxiety, and I feel like deadlines and public commitments stress me out and distract from actual work. The more work feels like non-committed play

I have social anxiety, and I feel like deadlines and public commitments stress me out and distract from actual work. The more work feels like non-committed play and less like social obligation, the better. However, deadlines work best for me if I am genuinely helping someone. So setting an arbitrary deadline is less productive than asking something like "I need that tomorrow because I would like to show that to client". Possibly because helping others is always, in some sense, uncommitted.