Curled leaves from I think soapy water

Hey dude - those brown rust spots aren’t aphid related, it’s actually the start of a calcium deficiency. Add a calmag supplement as part of your nute regimen (1ml/L will suffice) and it won’t be an issue. You can use calmag all the way up to last weeks of flower if needed. Although I usually cut out calmag around 3-4 weeks prior to chop. Can’t tell from the photos that you’ve got an aphid problem although the mottled and curled leaves can be a sign of pest stress. If you do then it’s a problem that will not go away easily and may very well not at all. Once those little fuckers dig in and have their first mating cycle you’re gonna have to deal with em to the end. IMO best way to handle these little bastards is by releasing a shit ton of lady bugs into the tent. They’ll keep the numbers down and are very effective next to almost all other options.