Bismillah!
As salamu aleykum warahmutu Allah!
Well, I'll give you my honest opinion on this: I've actually never had anyone who motivated me, but rather the opposite happened. Anyway, what I want to tell you is, do not count on people's "motivation slogans", but rather try to set a goal for yourself, and tell yourself, you want to accomplish this and that and if you face criticism at any point of time, just do not care, keep doing your thing (within islamic boundaries). Do not think, you'll be accomplishing this thing for a person, just do it for yourself, you'll benefit from it and if others benefit from it, then that's much better

All I want to say is, set a goal and try you best to reach it, and even if you fail, do not worry, just try your best. The one who does not try has already lost
May Allah make it easy for you!! (amin)!!
And Allah knows best!!