Take your time. Insist on appropriate lead time. It'll actually get you some respect. Own your tools, don't let them own you. When your computer bombs, you'll understand just how deep that trouble is.
Stress can come from unrealistic expectations.
Trying to be perfect and do perfect work is a major one. Trying to make everybody happy is another. Admit you aren't perfect and let some things go. Trim your to-do list. Cut back on what you fell you have to read.