You should value yourself highly! Think about it this way — if they could do it themselves, they wouldn’t need to pay someone else to do it (even if editing comes more naturally to you).
Good for you for asking for a higher price! This is exactly why I don’t have a price list on my website — I ALWAYS speak to them first to build a relationship and examine exactly what they want and need. Clients often need more than they originally thought and it’s a great way to give them a more personalized, customized quote.