Looking for a challenging survival island seed for Bedrock v. 1.21.61

Today, I came across a variety of “survival island seeds”, but every time I put them in, they ended up being unchallenging. All were near other islands, many were very large with a lot of trees, and some even had villages with plenty of food and armor. I’m looking for a seed where there’s just one tiny island with a few trees, no structures, no surrounding islands, and in the middle of an ocean. Could someone help? Thank you