Influence of Different schools on Western Therapies, and how to approach Personal Choice?

After a prolonged struggle with various eating disorders (atypical, anorexia, bulimia, BED) over nearly two years, as well as ongoing mood disorders and severe anxiety for the past three, I've found conventional self-guided Western CBT therapies, and even standalone meditation, largely ineffective for me. Significant barriers (financial, temporal, locational, cultural conditioning) limit my access to consistent professional therapy, and will likely remain in place for the foreseeable future. Believe me, I've tried. I'm looking for an alternative path, a fundamentally different framework than modern psychology, to address a deep-seated lack of purpose and unresolved trauma, ultimately seeking peace of mind. I've long been drawn to the exploration of Western neuroscience and cognitive science on Buddhism, specifically the tangible benefits of mindfulness meditation. My "hope" is to find a Buddhist school that aligns with, and ideally offers a practical experience similar to, approaches like MBSR, MBCT, and DBT, despite their fundamental differences from traditional Buddhism. This leads to my core questions: 1. **Influence of Buddhist Schools on Western Therapies:** How much influence do different Buddhist schools (e.g., Theravada, Zen, Pure Land, Tibetan) have on the development and practice of: * Dialectical Behavior Therapy (DBT) * Compassion-Focused Therapy (CFT) * Acceptance-Based Therapies (e.g., ACT) * Mindfulness-Based Cognitive Therapy (MBCT) * Mindfulness-Based Stress Reduction (MBSR) I understand that Western mindfulness, particularly MBSR/MBCT, is often linked to Theravada (Vipassanā, as seen in the Insight Meditation Society and "Mindfulness in Plain English"). However, I've also come across arguments for significant Zen Buddhist influence on Jon Kabat-Zinn's work, which resonates with the "non-dualistic" feel of modern mindfulness. 2. **Is it problematic to choose a Buddhist school based on these inspirations?** Given my past experiences and current limitations, is it a "wrong" approach to seek a Buddhist tradition that primarily contributed to, or feels practically similar to, these Western therapeutic modalities? My aim is not necessarily "enlightenment" in the traditional sense, but rather a path to alleviate suffering and cultivate inner peace, perhaps building positive karma for future lives (as a layperson, taking a stoic approach to the ultimate goal). 3. **Navigating Availability and Personal Preference:** I'm personally more attracted to Theravada's "down-to-earth" step-by-step Eightfold Path and emphasis on mindfulness, along with the sense of certainty from practices like one meal a day and abstinence from alcohol. However, in both my current city and home city, Mahayana denominations are more readily available (authentic Chan, Thich Nhat Hanh's Plum Village, and a modernized immigrant Pure Land school). I've visited the immigrant Pure Land and authentic Chan centers, but they simply don't "click" with me; they feel "weird" and I don't like them. I haven't had the opportunity to visit a Theravada temple for comparison. If I choose Theravada, I'd likely need to rely on online sanghas, which may not accommodate my timezone. Given my intention to remain a layperson and focus on personal practice for peace of mind and perhaps future karmic benefit, I'm unsure how crucial an in-person or online sangha is for my goals. Any insights on these points, particularly regarding the historical influences and the appropriateness of my approach to choosing a path, would be greatly appreciated. Thank you.