Easy Bud by RQS / First Grow

This week I'm hoping to see some fast growth of the true leaves. I would also want to start some LST, hoping she'll turn out to be quite short and stealth. Day 8: She didn't grow much over the night, I realized my soil was dry so I watered her a bit, hopefully tonight she'll grow more. Day 9: I wasn't watching and had a heater running for around 5 hours with lights on, I didn't notice the temperatures going up to 29C and relative humidity dropping to 35%. Right when I realized what I've done I brought the humidity and temps back to the normal 22C and 55%. The leaves aren't perked up anymore and the plant bent over, which is quite a concern. I hope she'll return to her previous state by tomorrow morning. Day 10: I'm very worried about the slow growth, it does grow, and looks like the stem has straightened up since yesterday. I'm rotating it around once a day so she's as straight as possible. I hope it's nothing serious, just a little stress; it might even be useful if I want to keep the plant dwarfed.