A new beginning

sure. Either you should have taken a bigger pot, 6 litres to 8 litres from the start, or have repotted it after the first week. Then you must give more light from the start. Do you see how thin the stem is? A strong lamp on the other side of the room, obviously doesnt work at all. If you can dim it down to 25 %, you probably can hang it 30 cm (12 inches) above the seedling. At week 7 it should be quite a bush, about 30 cm high. A little bit of fertigation will help ,too. The direct light above the plant, must be so bright, that you almost need sunglasses to look at your plant. Never look directly into the light, this will harm your eyes!