You cannot add people as plaintiffs to your case without their permission. You would be dragging them into litigation without their knowledge. At this point they can file their own lawsuits and if they are very similar, the court might group all of the suits together. You add DOE defendants very differently than just adding their name to a new pleading. There is a DOE Amendment form. Prepare and file that.
Consider getting an attorney. It is not too late. You are headed into very complicated situations in which you have a high likelihood of being overwhelmed and beaten by process and procedure that you do not know how to handle. It would be a shame to lose your case, assuming it has value, because of that.
Good luck to you.
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