We all have these memories, something you wish you can forget. I have a few but in reality, those are what we must learn from. These memories hurt, they make us feel less of ourselves, they carve a hole in our hearts... but that's only if we allow it to make us fall. Hold that weight and carry it and after you show faith that you are not giving up, it will become so much better. Don't run from your fears, don't feel like you can't do something, and definitely, do not let it break your spirit.
Some people believe in second chances but I don't. A second chance is not giving them another chance to hurt me, it is giving them another chance knowing they've hurt me and I can't stand that so I don't do those. In some cases, it is necessary, if you feel it was a mistake. Second chances are earned and not given. You don't give second chances out of pity, you give them once you know it deep in your heart that this person will never do this again and you feel that it was a passing phase in their life.
From experience, you never cry over it for long. You can but it doesn't help. My main advice is to find someone whom you trust veryyyyy much, and tell them... but it's not for the fun of it or because I said to, you need to know that they are going to comfort you and that you will not regret it later. It's hard to find people you can trust but for me, I have my mom and my grandmother. They help me with a lot of things and they have more knowledge of this world so they can give me advice.
Knowing that what happened might not have been your fault is also important. Yes, we might have done something wrong but you need to understand people think and act differently. We have these people called 'overthinkers,' who we all know, can be hurt easily. If you know they are overthinkers, why would you make them doubt your love for them? Quick note tho, in this life once you care about someone you can never consider it a 'like,' its called love. Love is not for this chapter but lemme just say that love is blind and love is real. You have the right to tell someone 'i love you' when you know it deep in your heart that you'd never hurt them physically or emotionally.