A good way to reduce self-induced pressure is to accept that you’re a handicap golfer. You don’t make a par on every hole.
When you try to get a low score on holes that are too difficult for you, you force your game to produce more than it can deliver. You risk taking a high score by pressuring yourself to play better than you know you can.
Professional golfers know on which holes they can attack and on which holes they need to ease off. Recreational golfers need to play golf the same way.
Your handicap gives you an allowance for holes where playing for par, or even for bogey, depending on your handicap, is asking too much.
Take advantage of that. Play to take an extra stroke on the difficult holes. Take what is yours and let the golf course have the rest.
As you improve, you can start challenging the holes that used to challenge you.