How can I display all the information on this blood donation request card without cluttering the card's visibility on Stack UX? Additionally, I have a long text that describes the user's blood need, possibly around 200 letters. Please suggest a way to avoid filling the card with too much information while still conveying the necessary details.
Your question, centered on creating good design, is a challenging one to answer succinctly. Design involves a combination of extensive knowledge and practical experience. I believe a good starting point for you might be exploring mood boards or sources of inspiration. I've attached a few examples of similar cards below that you might consider incorporating into your design.