V, my advice (not that you asked for advice) is that you love yourself first. Do some things just for yourself, whether it is making a quilt, getting a pedicure, or taking a class that you have always wanted to take. It doesn't matter what, as long as you feel good about it. And make it a regular gig.
Let the losers and takers fend for themselves. Waste no time on 'what their problem' is. It's THEIR problem; you will be too busy enjoying the new quality in your life.
Never fear being alone. If you are comfortable in your own company, more people like that will be drawn to you. ( And frankly, being alone is far superior to being with people who suck the life out of you.)
You are worth receiving all of life's gifts. Accept the good; ignore those not worthy of you.