One of the requirements to claim and successfully win a disputed domain name away from the current registered owner is to show the current owner has used the domain name in bad faith. What that means is that they must show that you tried to benefit directly from the good name of the trademark holder.
So as long as you do not use the domain name to publish content about the trademark holder, or anything related to them, or their business, then you are pretty secure in your ownership rights. However, since you publicized your intent to use the name in “bad faith”, you may have already placed your ownership rights in jeopardy.
Another option might be to do a little research to see if you can find anyone with the same name that might be interested in purchasing it. You might have a good chance if you find someone with the same name that is an entertainer, musician, actor, etc.