She’s a little leggy Grow Bro and stretching due to the light height. If you don’t have a meter, look into the smart phone app called PHOTONE. Short of a meter I would dial the 100 watt light down to 25% about 10” above the seedling. I would also recommend a clear dome, mist the inside of the dome daily removing for fresh air and water an ounce or 2 around the outside of the dome every 2-3 days