AsNoriuanswered grow question 20d ago You can add soil, 1-2 cm max, dont try to bent it out, she will create roots from buried stem, there is no problem. Or you can give her support, but if you are new, better leave as it is, or use soil, less risk to break her.
Btw your soil looks very fine, too fine, hopefully roots will develop good, usually such soil brings troubles.
Plus i would question how you water , where and how often, photo gives me impression, that you don't know optimal behaviour.