Well you're already aware your english's garbage so here's a tip: Write the translation on Word or something, run the spellchecker to catch the most egregious mistakes, then give it a quick check to catch anything else. Copy/paste the dialogue to Photoshop or whatever you use. Now give it a...
1. She also used her wish power to isekai. So here by denying the consequence (meeting Illya) she's denying the action (using the wish power).
2. The laws of reality aren't very stable atm, so she's doing some doublethink to have the cake and eat it too. Presumably if she did it too long it'd...
My boy has learned to multitask, asking questions while ogling some fine legs.
E: Don't like new girl though, everyone else is normal and here we have a teen cyborg hacker agent rebel who is cute to boot.
Essentially the cancer is a permanent DoT. He can prevent death by leveling up (therefore increasing his current and max HP) to outpace the dot but once he hits the level cap that's it.
Note that 12.3 in dex is 12.6 in manga up, so we aren't that far behind. (But this chapter came out about 4 months ago so GDS is still dragging their feet)
Also wow the official version is actually significantly better translated.