RQS Quick One - First Grow Ever!

Regardless of the few issues encountered, it's been a great week. I've started feeding on a regular schedule, but I'm still experimenting with the dosage.There's also been constant growth for the leaves and branches, which is why I started LST at the weekend. As for the issues (see last pictures), I'll start with the leaf miners, which is the first one I encountered. I squished them with my fingers and sprayed organic insecticide, which seemes to have gotten rod of them (even though I'm not sure they were leaf miners in the first place). Secondly, some of my leaves have had the tip of their leaves brown a bit, but I read some bit and figured out it wasn't really a threat (again, this is my first grow so I'm not 100% sure). Finally, I think I might have given it too many nutrients at some point, but I watered it again the same day to reduce the PPM, just in case. If you have any ideas what the incidents might have been/be, It would be very helpful if you left a comment :) I'll be planting it outdoors next week hopefully, as temoeratures have risen. That's about it for now.