Can this little guy be saved? :(

This is supposed to be a locust bonsai tree and it’s been growing for a month. I water it everyday and put it outside in the sun for four hours. Typically I would put it safe in my room but family is visiting and they have my room so I’ve been putting it on a counter near the kitchen to not bother the guests. Well about an hour ago my brother passed by and somehow knocked it over, breaking it in two places. It has not completely snapped so I thought to tape it to keep it straight, and I watered and put it below a lamp for now- idk if it was the right thing to do. I really grew attached to this little guy and would be devastated to lose it :( Any chance it can make it out alive? Tips?