Should I seek representation if my manager terminated me and I have ten witnesses to prove that it was wrong??

A manager has denied me two breaks on different occasions, has bad mouthed my work performance to peers after having numerous compliments by client, used a previous documentation to belittle as well blackmail me from complaining to upper management, discriminated against me for wearing a pink shirt in front of my peers which was allowed by my company. Once I had tolerated enough, I had addressed the issue to other managers who had told me to discuss this with my general manager. I spoke to the general manager who is friends with the manager in question who then neglected my claims twice on different dates. After expressing my right to go to an outside source, the labor board, Equal Employment Opportunity Commission, and corporate, she found a reason to terminate me before I proceed with any actions. After termination I called the Vice President of operations in Southern California to discuss the issues who disregarded my claims as well. If I have ten witnesses to the events in question who are willing to testify against this multi brand corporation and the company is based out of Texas but my store is in California, should I seek legal representation?