1. Mindfulness and acceptance: Help individuals stay present instead of being plagued by past regrets or future worries.
   
2. Defusion from pessimistic thoughts: Teaches to detach from unhelpful thoughts rather than believing or avoiding them.
3. Values-based living: Encourages individuals to act according to their core values instead of short-term avoidance of discomfort.
4. Behavioral commitment: Promotes taking action, even in the presence of distress, leading to meaningful life changes.

Below are some additional reasons why it’s so useful:

5. Reduces experiential avoidance: Many mental health issues stem from avoiding difficult emotions, thoughts, or sensations. ACT helps to stop avoiding and start accepting, which leads to long-term psychological resilience.
6. Enhances psychological flexibility: Unlike traditional cognitive therapies that focus on changing thoughts, ACT teaches people how to relate to opinions differently, making them less rigid and more adaptable.
7. Applicable to everyday life: ACT techniques are practical and can be used in various situations, ranging from handling stress at work to managing personal relationships.
8. Encourages long-term behavior change: Instead of directing attention to symptom relief alone, ACT helps people build a life that lines up with their principles, leading to sustained improvements in well-being.
   
9. Works even when symptoms persist: Traditional therapies aim to eliminate symptoms, but ACT aids individuals in functioning well even when uncomfortable feelings or notions remain present.
10. Reduces overidentification with thoughts: Many people struggle because they believe their thoughts define them. ACT helps create distance between thoughts and identity, allowing people to see opinions as temporary mental events rather than absolute truths.
11. Works for people who are resistant to traditional cognitive therapies: Some find cognitive restructuring (challenging negative thoughts) difficult or unhelpful. ACT offers an alternative approach by teaching people to accept thoughts rather than debate them.
12. Encourages a growth mindset: Instead of labeling emotions or experiences as “good” or “bad,” ACT promotes learning from challenges and taking actions according to their values, which advances resilience.
13. Enhances emotional regulation without suppression: ACT helps people build tolerance and resistance rather than avoiding or suppressing emotions. This makes them less likely to engage in unhealthy coping mechanisms.
14. Addresses rumination and overthinking: It aids individuals in breaking free from cycles of worry and overanalyzing by teaching present-moment awareness and defusion from thoughts.