1st grow - Spacebucket - Blueberry Auto

Day 15 - So, first day of week 3 and I started LST. I was actually thinking of maybe topping or fimming it, but most people didn't recommend it for beginners. I also spotted the first pistils today. Someone told me it might go into flower in a week, so I decided against it. Instead I did the first LST. And damn it was stressful!!! I never really touched my plant up until now. It was my baby, seeing it grow so perfectly and evenly was entrancing. It was much more difficult than I anticipated. I had limited space inside the space bucket, also limited space to get my hands in there through my door. Then pulling on my little plant was really difficult. I think I even heard a small crack at some point, but I didn't spot any visible damage. Eventually I succeeded and I think I did good. Day 16 - Tightened the garden wire a bit. I don't think it needs to go much further? I'll wait now for it to grow a bit so I can put the wire between the next nodes, and pull the new growth down as well. It looks like it's still pushing out a lot of green. Faster every day. Day 17 - Moved the LST a node higher with a new system: a bit of electrical wire to touch the plant which is tied with a small cotton rope with a knot I can tighten. Easier. Day 18 - A new branch looks stunted. Some weird holes, brown spots and weird edges of the leafs. I wonder about the cause. Temps went up to 27°C, could be that... In any case I wonder more what to do about it. Cut it since it will always be stunted? Day 19 - Temps went up to 29°C today, can't help it since it's the room temperature and I don't have active air cooling at home. Due to the stunted branch I removed the LST in hopes of stressing it somewhat less, as recommended by a redditor. Day 20 - New growth on stunted branch seems fine for the moment, not going to change anything. Think I must have damaged it during accidental rough handling while setting up the LST. My new technique with the rope allows me to be much more gentle. I also drilled some more holes in the pot so the soil will dry faster. Day 21 - Watered 1L pH adjusted water. I did 2L last time but my soil stayed dry for too long. 6 days! Hope it will dry out faster now with less water. There was some runoff but not much. Also moved the LST a node higher. Lots of pistils showing, hope it's not entering flower yet.