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You CAN edit the post @modallas, down on the bottom of the post is the 3 dots, just click on those dots and you will see the edit choice. You can edit any post you make.
And even at that, perhaps make another actual introduction post with 2 to 3 pictures and maybe 500 words, something to tell the community who you are. Make sure you use the #introduceyourself tag as the first tag for maximum exposure, and only one time.
Do not make multiple introduceyourself posts.
Let us know if and when you make one.
Best of luck here on Hive!!!