I think I understand what you mean.
I have also felt that I cannot express my true personality and views around people in general because of the feeling that they will think I am crazy or delusional. Sometimes I feel like some people are too sensitive and do not understand humor so its almost impossible to have even a funny and relaxed conversation without having them get offended. All these feelings have been blocking in my case. The fear of rejection is very real.
There are different kinds of people though. Some do not understand the type of person I am and some do resonate with it. Some judge and probably make fun of me because they do not understand me. Some others get closer and more interested in connecting because there is resonance.
I understand that maybe the majority of people reject or discriminate what they cannot understand. However, the number of people who are developing their awareness, their consciousness and their lives is increasing every day and each day more and more people want to connect with more deep souls, like us for example.
If you chose isolation, then maybe this works for you and makes you feel better. If so, then that is probably what you need at the moment and it is fine. However, in my case, I appreciate isolation but I also appreciate to be social and to be able to connect to other people. What is important to me is to find the right people for me to connect to. Not everyone is for me, but who cares? I live and let them live, I do not need their approval. I just need to find the right people for me to share with. People who are like-minded usually. I try not to bother with the rest and try to distance myself from them.
However, sometimes these fears of rejection are our own perceptions, our own reality and not always the truth. Sometimes there are people who genuinely appreciate us or like us, but if we carry these mental patterns and fears, we may have a hard time accepting this and then we feel the awkwardness and lack of acceptance while being around others.
We may use our perception to discover the goodness in others and to accept that we also belong and are worthy of acceptance. But if we cannot find it and isolation feels best, then that is good, at least we have ourselves to connect to