Keep away from people who belittle your ambitions. Small people always do that, but the really great make you feel that you, too, can become great. ~ Mark Twain.
I’ve had to learn the hard way who my real friends are, but the best way for me to tell is if they want to lift me up or bring me down. I only want to be with people who support me and in turn make me feel stronger because of their love and belief in me and because of my love and belief in them. You can’t have a friendship that’s one sided, you have to get as much as you give.
It might be worth letting a toxic person in your life know how you feel. If they aren’t willing to change the way they treat you, consider not spending so much time with them.