Well it depends on the jurisdiction. The Orthodox Church has made no official pronouncement on these issues. Whether or not RC or Protestant sacraments contain grace is not something that the Church pronounces. Nothing certain can be said about the validity or invalidity of your baptism.
Now there are many Bishops who would accept RC and Protestant baptism as “valid” by economy, this isn’t necessarily a pronouncement on it’s validity, but rather an act of charity so as to follow in the spirit of the law. Other jurisdictions of the Church baptize every convert entering by default regardless of their previous history. Regardless, even if a particular jurisdiction would not grant economy in these cases, if another jurisdiction grants economy and has the person undergo chrismation instead of baptism, then this person must be accepted by all Orthodox no matter their opinion on how this person should’ve been received.
In my particular case I am being baptized, but it could be different for others.