One of the most courageous decisions you'll ever make is to finally let go of what is hurting your heart and soul. What a hard hard thing to do.letting go means trusting again, possibly putting yourself out there to be shattered yet again.
I'm not sure if I completely agree with this because you can be happy from being with other people, but I think I would agree more if this said positivity instead. Being happy is a very personal thing and it really has nothing to do with anyone else.
The Complete Guide on How to Develop Focused Self-Discipline