People are resistant to change. i think
It makes you less reliant on yourself to fix the issues. So you don't feel the need to fix or look for any issues because you expect the computer to fix it.
Haven’t done this in a while but I think it’s complex
complex contains an independent clause which includes subject and a verb in that sentence and cannot stand on its own.
Independent clause can stand on its own and makes a complete thought
This is imagery. The example probably means the girl is doubting herself.