No other person can ever love you as much or more than you love yourself. If we can barely grasp what our own frequently shifting desires and motives are then how can anyone else? It’s up to each of us to get our own satisfaction and needing someone, who’s on the same mission, to deliver it isn’t fair to them and is the course to failure. True love and happiness comes from within and you can’t give what you don’t have. There is no love credit card.

“If you want something to change, change it yourself.” Andy Wahrhol

To your list I would add, make time to reflect on what it is you want from life. Then ask yourself, what does it do for me? Life is a string of experiences. Do you want empty ones?

Secondly, and along the same line as “the old adage”, you must be useful to yourself before you can be useful to others. There are far too many severely broken people latching onto others just so they can defocus from their own problems. That’s a train wreck waiting to happen.

You will attract like minded people partly because it’s such an interesting adventure you’ll talk about it and like minded folks will join the discussion will want to join in. See this and other comments.
Plus, who doesn’t like a happy face?

If you want to be with people who are most capable of loving you, only spend time with people who show the signs that they love themselves. Making those observations and letting them guide your decisions (especially about romantic relationships) is part and parcel of “loving yourself.”