You should definitely keep your post! - It's really great. Just like teamsteem said, you could do another one later on, when you've gained some traction and when you've built yourself a decent following. - However, I wouldn't use the "introducemyself" tag at that point, but you could easily use "introduction" for instance.
"introduceyourself" posts are often rewarded rather good compared to other posts on a regular basis and if you publish multiple post using that tag, you risk being flagged and that will not only affect your potential rewards, it will also hurt your reputation.
Just some friendly advice :)
Thanks for the friendly advice, it's really appreciated. I won't be re-introducing myself, but rather focus on doing whatever I can to help fueling the Steem train. Blogging will be a continuous improving thing for me, but I certainly can tell many friends about this amazing platform and community.