The human between time to time need to be alone to arrange his thoughts and understand himself more but he needs people around him because if he falls they stand with him and if he fell lonely makes him happy and when he achieves an achievement he found someone to tell him
If you are alone, you may have a problem.
And if you can't sit alone at times, you may also have a problem.
Because a person needs to be alone, even for a while, face your problems and improve yourself and strengthen your skills, and very important to you to know how to feel comfortable, and with whom, because everyone is different their needs and their expectations, but every person, no matter how different their natural, need to feel a sense of belonging, he needs to feel included not excluded.
Life is full of stress and escapes from it, it's a purpose we can't achieve, but like it said in Bo jack horseman
" don't feel bad about feeling bad, it's okay to not be okay"
Maybe the stress helps us to achieve our work, how many times before the deadline you delivered your work, how many times you catch up for exam because your body has provided its maximum physical energy
But constant stress can affect the quality of your life
It prevents you from being happy
Try to get away from people who increase unjustified stress to you, and you should know that the most hormone that faces stress is "oxytocin" the hormone of love, try to get close with those people who love them, and not be ashamed of showing his love for them