everything you said is your ego/mind talking not you. You aren't your worthless thoughts. You are not your thoughts. You are not the voice inside your head that tells you that you are ugly and no one loves you.
Once you are able to realize that then you can start to watch those negative thoughts without getting engaged in an argument with them. Take a minute and watch your thoughts as them come up. Don't critique them, simply watch. Notice how they continue without any of your involvement.
After that, sit down or lay down with your spine straight and do this exercise. Take a negative thought you have. Take white hands and go into your solar plexus(area between your rib cage right above your stomach) and scoop these thoughts up your spine and out your third eye (middle of your forehead) and place the thoughts in a white bubble. Now see the bubble and all the words of the negative thought or image in the bubble. Send the bubble off into the sky and have it burn up in the sun.
Do this as much as you want and you will begin to feel more peaceful and less worthless.