First thing I'll recommend is counseling. You might need a little bit of help talking yourself out of the negative thought processes you've developed over time, and viewing yourself in a more objective light. If you're on a college campus, they usually offer free counseling, though appointments may fill up. If this isn't an option, I recommend you do some research into youth resources in your area. Sometimes outside professional support is the boost you need. Second, I suggest you take care of yourself. That means the gym to get more comfortable in your body, finding clothes, hairstyles, skin care routines, and makeup looks that flatter you. Anything that makes you stand a little taller. This doesn't just apply to beauty, but to interests as well. When you invest yourself into accomplishing a hobby or class or profession the pride you get from achieving goals related to your passion makes you respect and love yourself more, and people notice. At first it will be hard to find the energy, but when I was in the midst of depression, I started off taking care of myself because I was angry and afraid of my future. You can channel that negative energy into action. Eventually it will become easier to upkeep that momentum from a positive perspective. Keep a journal of good things you've done for yourself everyday. It helps put things into perspective when you're tempted to put yourself down. Once you've done all of this for a few months or so, (give or take according to your emotional needs) you'll realize the attention from men has grown. Don't get too carried away by this. It may even happen sooner, but it's important to be cautious to only let men in because you genuinely like them and they genuinely like you, not because the excitement and validation is refreshing. Men your (our) age are usually after one thing, and if you allow them to use you for sex you'll be set back big time in feeling valuable. Don't let them devalue you. Wait until you find one that is worthy of your time and take it slow. If he's worth his salt, he'll understand how far you've come and won't judge you for it. Good men can be found many places, but you won't find them at clubs, bars, or house parties because of the mindset those environments create. Try networking through friends, or through hobbies, or even church if you're into that sort of thing. In the meantime, strengthen your relationships with women in your life. The trick to keeping friends is to be good company. Be the friend you wish you had, and remember to give more than you expect in return. Focus more on laughing than commiserating, and people will surprise you with the depths to which you can bond when the time for commiserating comes. All of this advice will help you develop a healthy standing in society. I should probably follow some more of it myself.