I abandoned the bookmark because I had trouble bending down.
That's sad. Why did you just leave it?
I couldn't physically reach it and my newest bookmarks are better anyway.
It sounds like you have some nice bookmarks! It's understandable that you left your bookmark if you could not physically reach it, but in the future you should try to see if you can find someone to help you pick it up. You will feel much better when you did your part to not litter.
You think I'm a bad person for abandoning the bookmark? That's not fair.
No I just don't think littering is good for the environment and you should do your best to pick up after yourself. If you can't then you should have somebody help you in the future.