I do not recommend that you separate yourself from those who complain, nor from negative people. Try to understand that if they complain it is because they suffer, even though we do not see "their cross." Try to get closer, help, accompany, listen, console, encourage,... Try to Love and Heal your neighbor because we are all children of the same God and therefore "spiritual brothers", "brothers of light".
Nor do you follow those (misnamed) spiritual guides, religious leaders, scientists, psychologists, etc., who advise you to do the opposite of my recommendations. Don't believe anything because "a brilliant mind of humanity" says it, try to think for yourself, and then you won't be deceived, you won't be separated from your brothers.
For me, and I say this with my heart in my hand, those supposed guides and spiritual leaders of humanity, who preach, promoting separatism among human beings, are not at all "enlightened minds", rather "dark and sick." One who, for example, puts a tunic of a certain color over his body after having shaved his head, does not become a spiritual guide. Spirituality is demonstrated with actions and "by its fruits you will recognize the tree."
Keep in mind that the first to complain have been those people we are talking about, because they complain about those who complain, and the separatist stance they demonstrate is totally negative.
Do not separate yourself from others, do not dig your own grave, because there will come a day when you too will need the help of others, and you will find yourself alone.
Damián Alvarez at http://sistemasanaciontinerfe.blogspot.com/
33 Years at your Side (very close)