This is such a relatable situation — especially when you're passionate about your work (which is awesome, by the way!). For a double-sided A5 flyer/postcard, the average time can vary depending on how clear the brief is and how decisive the client is with feedback. But generally, 4–8 hours is a common range for experienced designers — including research, concept, design, and revisions.

Since your client hasn’t given super specific direction, you’ll likely spend extra time exploring ideas. In that case, it’s totally fair to charge either hourly (e.g., $25–$50/hr depending on your experience and location) or offer a flat project rate that includes a set number of revisions. For something like this, a flat fee of $80–$200 is pretty standard, depending on your market and how polished the final product is expected to be.

Since you mentioned you’ve been in the industry for about 2 years, I think you’re in a great position to charge with confidence. You clearly care about quality, and that’s valuable! And if this client could lead to more work, you could consider a slightly friendlier rate this time but make your time boundaries clear — like how many revisions are included.

P.S. If you ever find yourself wanting to sharpen your pricing skills or creative edge further, a good graphic designing course that focuses on freelancing and real-world briefs might be a game-changer too. I took one a while back and it helped me massively with client work and confidence.

Hope this helps — and feel free to message if you want to talk pricing strategies more. You're doing great! 🙌