Accept them for who they are. Or don't , it's your choice. You can change them a little bit but it's mostly wheather they want to. It has to benefit them.
Say you want to be part of a group. As you hang with them you notice some of them are not being very nice to you. Do you let it slide or do you take it as a warning. Think about it for a good long time. Am I up to putting up with this crap for my future experiences. Or is it time to move on down the road.
If you want to know someone, you have to be with them for some time. Pay attention to how they treat others. That is a big tell. How they treat others will be visited upon you sometime in the future. When you find yourself making excuses for their behaviors you are entering a dangerous space. Now is the time to take a step back and really think about your actions. Don't worry if you slam the door shut God will open up another maybe not right away but soon. Keep an eye out for future opportunities. What you just did was tell the universe no thankyou to that last relationship. I deserve better. That last relationship hopefully taught you something about yourself. It's about you and learning more about you. You are trying to be a more happier and better person than you were before.
Self introspection is the way to become more knowledgeable about yourself. Getting mad is ok to blow off steam but do it in private. Getting mad does not fix anything, it makes it worse. Help is blocked when your mad. To get a good answer be at peace and have a good humor. Being positive can help in all aspects of your life. Be kind to yourself and then to others. To drive a train you need an engineer. You are the engineer of your body. You can stop at any given moment and change direction. This is your life! If you don't like it. Then change it. If you need help you call on spirit for help. It may help you with a book, somebody tells you something, a tv show or something of that order. Just trust that where you are now heading will be beneficial to you. At first it maybe Tuff very Tuff but things over time will get better. Keep and open mind and work hard to get to that new desired place of yours. And once again keep a journal and date it.