You are the only you there is. Regarding "being an introvert": that is a condition that can change any time, by your own volition or by external events. Why shackle your "being" to any condition like that, so transient and so neutral regarding a benefit or harm. There are times to have friends, times to make friends, times to lose them, and times where one must go down the road alone. It's a great good to one's life to have good friends, and a tax and pestilence--a danger--to have bad ones. Folks change, you change. Good friends are like gold and good medicine. Bad friends are like theifs and poison. Introversion is important for self-growth, extroversion is important to develop for health physical and financial.