Endless, from my experience I can say that looking for outside appreciation in any form often ends up in regrets and even more loneliness and feeling that I've been just used. Learn to love yourself for just who you are, not judging by how many people affect, respect, admire you or find you attractive. It can be difficult but it fills up this emptiness inside and develops inner core that holds us strong.
Leave regrets in the past. Learn from your mistakes and move forward.