Where can I find a "nurturing" engineering graduate school?

I see the word “nurturing” could be ambiguous.

What if I title-changed to “where can I find a positively-reinforcing engineering graduate school?”

Maybe that could simply mean a less competitive school. One in which I could take my time, maybe 4 years, to get a masters.

All I want is another chance to live happily, developing competence in some field. K-12 allowed that opportunity. If you put in the time and diligence, you mastered cursive. You mastered grammar. You mastered algebra. You mastered history. Spanish. College robbed me of that opportunity, that joy. After K-12, you get by if you are a natural genius or you are OK with the chronic state of being half-competent while pretending to be fully competent. I am neither. Is there nothing left for me in this world?