A mentor is someone who pushes you in a way that you endeavor to improve whatever it is you are working on. Some mentors are calm and sweet and help you in a more positive way, whereas other might yell at you and tell you to do specific things.
However, if the first just doesn’t get you motivated to do what you need to do whereas the second one does, then go find yourself a mentor who does just that. Those are the kinds that can push you in way you never knew they could. And if you ended up with someone who does scream at you and tells you what lousy work you’ve done and you need to do this and that to improve, your internal alarm might go off telling you to run even if the advice given is sound.
For me, I need someone who can push me in ways without being over the top. I love receiving constructive criticism, as I know the person who gave it is only trying to help. They want me to improve just as much as I want to. We need to find that right person, or persons, who will push us beyond our comfort zone. Who will understand our limits. I have a few people like that who’ve helped me to move forward and improve in my writing and I am every so thankful they’ve been willing to give me some of their precious time to do it.