What's the best way to get over the hurt, frustration and anger?

By finding some sort of outlet to channel your emotions in a safe way so that no one gets hurt and you can deal with your emotions safely

All things heal in good time. Most importantly is for you to let go of what you can't change and move forward knowing that you are more matured and wiser in not making the same mistakes again.

Find an outlet where you can express it. With hurt, tell the person who hurt you, how they hurt you, and regardless of what they say, move on. Frustration, deal with it (or as much of it) as you can, and let go of what you cannot control. Anger, forgive. I didn't promise any of this would be easy.

Talk to someone. It does not help us when we hold in our feelings. Our thoughts, while they can be wonderful, can be very dangerous. Spending too much time thinking about things and holding in feelings can hurt a lot. The best way to let go of these feelings is talk to someone, even if it is someone who will just listen and not return advice. Try to engage yourself in things you enjoy. Try to occupy your mind so that you can begin to forget these feelings and let them go.

Allow yourself to process each of these feelings by asking what makes you hurt, frustrated and angry about the specific situation. Once you know the real reasons, you will be able to figure out what to do with them in the most healthy and productive manner. Invariably, you will understand the importance of letting go since clinging on to negative feelings is only going to harm you the most.

You might be hypersensitive and thinking that you are annoying your friends by being yourself, if you genuinely are annoying them and you're not trying to be someone, you're actually being who you are, then it is time to find new friends, as adapting constantly to feeling like you're not annoying people being true to yourself then they aren't that great of friends. There is friends for everyone and you are not alone. Have they actually said that you're annoying? if they haven't, then you could just be self critical of your behaviour and your identity, and you need to stop over thinking re-evaluate your position on the subject.

The best way to get over this is to experience the emotions fully. I believe that we should feel these emotions but we should not stay in them for a long period. These emotions are difficult and have the potential to make us feel stuck and prevent us from moving on. It is a daily thing, that requires work every day... it is learning to let go of the anger little by little each day. I find that it helps to write down every emotion that is felt and to express them - but staying in this place should be temporary. Acceptance and forgiveness are ultimately what helps one move on from these feelings. Forgiving yourself for the decisions made and the person or thing that caused harm is so important. Doing this is easier said than done and it takes time, but it essentially frees us from these heavy emotions and allows up to move on.