Hiya everyone!!

I need your help and would know your opinion about a specific subject, the choice of a username and his evolution over the time.
The problem is about my username, which I originally used for the first time many years ago. When I chose to be known as 'Mag1cWind0w' online, I wanted something containing the word 'magic' and starting with the same letter than my real first name, 'window' was just a random word (my English vocabulary was very veryyyyy limited at this time!) and the worst part was to use numbers instead of letters in it (stupid decision I made, seriously...).
It was fine during a very long time but over the time I started to realize that it does sound a bit too 'geeky' and now it doesn't fit with me, never thought that I will use extensively and more seriously some websites where I made accounts using this name.

As little fact, I created my deviantART account only for fun, without initially planning to upload art or using it at all, after a joke started with some members on a forum I was very active at this time (mid-2008).
Then after browsing and discovering a bit this website, I started to gain more and more interest about this place and this community (also my center of interests were completely changed when growing up and being older

), began upload some of my very first works (deleted since a while) and increasing interest in art-related thingies, finally I moved definitively to dA!
I thought quite some time ago about removing the numbers in it, leading to 'magicwindow', but I noticed that this typo is used quite often online and even on dA (existing
here), so this option was cancelled.
Now, I'm hesitating if I should continue to use it as my identity for my works, or using my real name, or starting to use a more appropriated new username? I'm already using the first at many places on the Web but it may sound too 'geeky' as said above; the second option have his own pros/cons depending of some factors; and the third option may be an interesting idea but may be lead to some inconsistencies online due that I already using my current username in lots of places, for example on deviantART and many other websites where changing the user name is impossible without creating a new account, something I would avoid... : (
What do you think? Should I keep my username? Does it sound too weird and doesn't fit? What should be the best choice?Sorry if I may seems a bit too selfish, but this issue is too complex and I need your help and opinions.

Thank you very much for your help!!! ♥
deviantART muro drawing
I was not comfortable with my surname and I've changed it. I support any kind of such decisions because it's the only life we have and we should do what we want.
My nickname was picked randomly (I wasn't an artist back then) from a dictionary and it means "retarded" or "stupid" but I loooved it lol I've booked my word on the internet! Now I refer it as staying foolish, funny kid
People that follow you will still follow no matter what name you have
The 'l33t' part seems not really serious and doesn't fit with my works and wishes.
But the problem is that I'm already using it everywhere and would avoid if possible to restart everything from the beginning. :/
Like I said to some deviants below, I will try to find a sense to each element of my nickname (especially the reason why there are these numbers in the 'magic window', opened to a imaginary magic world) or, alternatively, the second solution will be that I will continue to use my current user name in the places I already use it as a 'display' name but using a new 'official' artist name in the signature of my works, and also using it when creating a new account on a website.