This is a quest I've been on recently. However, I've taken a different approach to this, as realising as an adult (and introvert) you can't make friends through scerarios that add no value to both sides (i.e randomly expecting to make friends with strangers or going out with girls who are single as thats all we have in common). You need to find an area of your life whereby it makes sense for the friendships to happen and surround yourself with people that makes you grow as a person (i.e clubs and activities or relating to passions and values in life). This not only makes it easier for relationships to flourish, but also provides a sustainable, quality connection. Anything less than that, it makes it feel superficial and harder to sustain. However, I think something that is missing from this article is the fact that it is all about accepting yourself through self love. You need to bring something to the table that others would appreciate (i.e listening skills) The article seems to have some negativity and bringing that to the table will push people away! Also don't put expectations on the other person to be your friend as this can lead to self-destruction and fear of actually making decent friendships.