It's true that I had teachers that didn't give up on me, and I was very fortunate to have those teachers, because I often gave them cause to think there was no reason to invest in me.
Na verdade, tive professores que não desistiram de mim, e tive muita sorte  de ter esses professores, porque fartei-me de lhes dar motivos para não investirem em mim.