Find someone you trust and feel comfortable with to brainstorm a long list of possible solutions. Silly ones should definitely be on the list. Talk through how each possible solution might work. Try what looks like the best solution. If it doesn't work, try another.
Some problems are smaller than they appear in the mirror.
Go easy on yourself. Work hard and try your best, but don't demand perfection. Take one thing at a time and get ready for it. Don't wait until the last minute. Find things to laugh about.