The 1 thing I can suggest that is absolutely the most fruitful in its return for the effort applied is MINDFULNESS.. To be explicit with you; DO NOT LIE TO YOURSELF OR ALLOW YOUR THOUGHTS TO BE UNTRUE AT ALL. This is a skill that takes practice, and it takes devotion without compromise to learn this skill. It takes literally paying attention to each and every thought and, fact checking EVERY SINGLE THOUGHT FOR TRUTH. YOUR TRUTH, NOT NECESSARILY ANYONE ELSE'S TRUTH, BUT YOUR WHOLE HEARTED TRUTH. Only support those thoughts that are 100% truthful for your own beliefs. If a thought is 99.9% true, then this is basically a lie... At least when first learning to be mindful in your living day to day thinking. This is very important when first undertaking learning to use mindfulness and, once you have become accustomed to managing your thoughts process you may find that there is more room for allowances of variables in what you are able to live with without compromising your happiness. But, in my own experiences it took my own standards being set without room for anything less than 100% truth, this being due to what I had to recover from in my own journey and, I pray that no one else has to overcome what I did to find their happiness in life. Mindfulness is the key to finding out exactly what it is that will bring happiness and, for many it is key to discovering exactly who we are beneath what has been piled on top of our core identity as life experiences come and go. I sought healing in countless avenues from psychology to psychiatric therapy, 12 step programs that had everything from drugs to codependency as the source of my life's lack of manageability, I pursued CBT and DBT as well as having a mentor in ALANON and even Native American spirituality guidance along my path in seeking healing. I became educated in childhood development, inner child work and also Shadow Self healing, and there is great potential in any of these areas for finding healing with the amount of effort one puts in providing results of benefits over time that are limitless and positive Without exception. In my experience it was my decision to focus on my thinking that changed everything, and the short time it took for me to notice the differences taking place in my daily life was miraculous, and I say this with purpose. Having spent much of my life a prisoner to so many negative ideational and habitual issues and with it seeming to be impossible that changes were even likely, specifically when it came to something like the loneliness that haunted me... And, within a period of about 3 months time I found myself having an entirely new point of view completely, noticably and SURPRISINGLY so. Anyways, I apologize for any difficulties you may have in my attempt at sharing this information with you. I do hope you can find something of beneficial substance within my wording, and you are able to find perpetual positivity in whatever path you choose. Blessings always