well, you made few mistakes, i know you are learning the game, so i guess you need some help
From what i remember from top of my head these were few mistakes i noted
-When you cast spell with force above your magic stat, you take physical damage, so when your manabolt was casted you took stun damage as drain, and you should take physical because you did it on force 5, and your magic is 4
-Mind probe is invasive spell, when you do it on someone they feel like you are raping their mind, so, you cant be sneaky with it, its a spell you generally do on prisoners, also there is a chart for that spell that is based on net hits.
Part about complex action is only when you do it in combat, otherwise, with mind probe you could learn whole history about the person you are probing depending on your success, not just 1 information, in combat its 1 information per turn, and only way you could do it in combat is perhaps on someone who is unconscious, while rest of your team is still fighting.
-Technomancers cant do cold sim, they are always in hot sim