Therapy can take place with an individual, a family, or a group. The best option for you depends on your personal requirements and needs. This would depend on the difficulties and the people involved. It might also depend on your existing support systems. It could even depend on how comfortable or ready you feel at the time.
The first thing to decide is why you feel you need therapy. There may be many reasons for this. Often you can use therapy to prevent things from going wrong. After all, therapy helps you develop skills. These skills can be just as useful to stop issues from developing as they are at dealing with existing ones. When you know what the problem is, you can find a therapist to help you overcome it.
An individual intervention
There is no set requirement to say what intervention you should choose. Often this will be decided jointly with your therapist. The therapist will take into account the concerns that have brought you there. They may also consider the existing relationships you have mentioned. In some cases, you may make it clear that others are unable or unwilling to be part of the process. That would all impact the decision made.
The main thing to consider is what will help you get the most out of the process.
For complicated cases, there might be multiple interventions taking place at once. For example, one intervention may include both individual and family sessions. Alternatively there can be two simultaneous interventions. E.g. one for the family and another for an individual.
The final decision in any case is with you. Normally, this would take place during the initial assessment. At that time you can also check the therapist is the right fit for you.
If you have questions about what you think would help you the most, feel free to contact me for a free consultation.