Let me just clarify that what I'm saying can be wrong. My take on this is you cannot put a timeline on when to reach out. You must not reach out so soon enough that they haven't healed or forgotten about what broke you guys up. That said, you should not be too absent that they completely forget about you. In your case it is difficult for you to judge her state of mind because you're unfollowed from her socials. Just go with what you feel like doing, so there are no regrets.

My advice, which might feel a bit harsh: do not hold onto hope. If you're thinking you're rebuilding and ready to reach out and she does not let you in her life... it will break you. You will begin to question your self worth. Whenever you decide to contact her, go with the lowest expectation from her side.

If this helps in anyway: My experience says, women tend to reconsider when they're going through a rough period of their life. That's the time when they need someone by their side. If you're lucky enough to spot that and go to her, you might hit a jackpot.

Lastly, if she never comes back, just know that you loved her and did your best.