First ever grow

So this is a complete beginners experiment for me and I am praying this diary doesn’t make me look stupid at the end! Hubby grew years ago and spent an absolute bomb on all his equipment and has little to no hope this will be successful! I want to see if I can use a small tent with a couple of LED grow bulbs and some simple nutrients. I chose these two strains as they’re advertised as compact, easy to grow with a chance of an XXL yield (although I’d be very happy with a small one!) I have no idea what my grow technique will be so any ideas for a clumsy, heavy handed beginner will be appreciated! (Terrified at the thought of breaking one of my babies!) Using a small 60x60x150cm tent with fingers and toes crossed it’s going to be big enough. These pictures are both plants exactly 7 days after they sprouted. I was a bit worried that one was very thin and long and the other had a couple of leaves that had curled. But this seems to have resolved now. Only watered once so far. No nutrients as I bought a special soil mix that states none required for the first few weeks.