You've definitely caused excess vascular damage. It still may heal.
Support it so it's not fighting gravity. If the leaves are still wilted in 48hours... probably not going to heal. Could wait a bit longer than that, i guess, but the probabilty is likely tanking. If it does heal, switch up supporting it to holding it down. It will try to grow/bend vertically, again. Tie it down where you want it to bend upward.
think the biggest problem here is the location. You needed to snap this sooner before it became so rigid you caused massive vascular damage. You can see the internal tissue, lol. If you do this a bit earlier at same spot, it's significantly less damage.
If this is not due to height contstraints, don't use HST. If it is due to height constraints, snap sooner and keep it growing horizontally... Even so, still better to LST it as it grows for the latter context too.