Life can be strange. Allah sends people into your life for a reason and a season and some are blessings and some are lessons.
Be a very positive individual even if people hurt you. People can be very harsh at times but even then forgive them and make dua for them. Don’t hold grudges. It doesn’t help. Once you’ve learnt the lessons then move on.
Hope for the best, pray for the best and strive to be the best.
Want the best for yourself and others too because you are a slave of Allah and you should be good to earn His Pleasure, people shouldn’t matter. Yes,pray for the people, work for them, work with them but don’t expect any return or reward from them. Expect only from Allah.