Why am I so afraid to open up?

When we've experienced rejection or been hurt by others, we build layers of strength on top of our wounds for protection. In order to maintain that protection, we have to be conscious of how, when, and with who we open up to. But, over time, with the reassurance of the people you are trying to open up to, and the confidence in yourself, you won't be afraid of rejection and will be able to gradually open up the depths of your true self to others. Trust your gut and your heart to know if these are people you should open up to, and when the time is right to do so.

its normal to be shy and hidden, its only human, most people don't really like talking about them self or their problems to people, but its a good thing when we do talk about them, little weight lifted off your shoulders when you do talk about things going on, message me anytime!

It could be due to past experiences in which you opened yourself up and got hurt, however, we can't let the past define our present or future experiences because the same thing will never happen again in the exact same way, yes, you might get hurt again, however, it will not always be like this, so there is no reason for you to stop trying. Consider the experience of letting go of such fears, one step at a time, first try with close friends or relatives (who you might be already open with, just try to get even closer to them), then, start broadening the circle until you feel comfortable with the level of opennes achieved.

Opening up is a step in recovery that can be hard to achieve. Opening up can mean becoming vulnerable (in a good way, of course), but nevertheless becoming an open book. It can be scary for someone to see how you truly feel, and what your mind thinks like.

This could be because you are scared of others responses to what you want to talk about, it could also be because someone has reacted in a negative way before. Only you will know this answer and it will take someone you trust and feel comfortable around to open up about things your want to talk about.