Yes. Therapy would be helpful and faster for recovery, especially under severe circumstances. You may do it on your own, but it may entail a lot of mistakes or take most of the rest of your life. However, there are many avenues or paths to recovery. One involves face-to-face psychotherapy and counseling. Another involves the help of a community along with self-help resources. Remember though that therapy or the work you do on your own will not heal all your wounds by themselves. It's a process, not a "point." Seeing a therapist once a week will not give you a quick fix or magical cure. Reading self-help books or receiving social support without the guidance of a therapist may fail to address many hidden, deep-seated issues of your abuse or trauma. The key is a well-thought out "balanced combination" of therapy and your own self-help measures plus social support that addresses the whole being - psychologically, emotionally, physically, and spiritually.