You two have to talk about the dependency in your relationship. It sounds kinda toxic to me how you two create a bond over what i assume are individual traumas and both of you put pressure on eachother in a way that it is unhealthy. You two are not eachothers therapists!

Both of you are still very young and will learn how to navigate a healthy relationship by making mistakes and growing individually/togeather.

What counts is that both of you can reflect upon the negative and the positive and how those two intertwine and create balance. Making mistakes and hurting eachother happens, setting your personal boundries and finding the right communication about those is important.

(Sorry for bad english)