As others said above I'd also suggest you try out pair programming (with a friend of yours). I find myself more relaxed when I'm with someone I can talk to, make jokes or just bitch about the things not working. When I feel stressed I change place with my friend and he continues with the code while I calm down. Also he might see mistakes you don't and helps you fix them right away avoiding the stress.
Another good strategy is to break everything down to small tasks. Tasks you can do in 30 minutes or less. Watching the list getting shorter makes you feel like you're doing something. I think this is part of the agile approach.
Another good strategy is to break everything down to small tasks. Tasks you can do in 30 minutes or less. Watching the list getting shorter makes you feel like you're doing something. I think this is part of the agile approach.