SlenderMan, is indeed a creepy character, when you think about it. The whole morph thing, is a bit bizarre, when you stop and think about it. My son, wanted to be slenderman for Halloween, ended up being a chamo morph. You know, how they say, some fears to overcome, you've gotta go out and do them? For instance, fear of heights, go do something heights related?
I found on youtube, diy slenderman costumes, if you cannot go buy one yourself. Could have some fun with the fear, kwim? If your parents would laugh and call it weird, double conquest?!

Hope you are able to get through this fear...