Great quote munish, but might be a little out of context here for LIS. This isn't just about relationships or women or a social life, but about life in general (although, LIS, it
seems like if you got a girlfriend and cool friends your life would turn around 180 degrees -- not so!).
Happiness and fulfillment is 100% directly correlated with
consciousness level, as David Hawkins (the guy who mapped out levels of consciousness in the first place) discovered. Jobs, money, relationships, friends, entertainment, approval, status, fame, etc. are nice, but we can see that even people with all of the above often still aren't happy (i.e. celebrities).
It's tough getting yourself out of depression and healing your self-esteem, but we're all glad that you've taken the initiative to change and to talk it out with others. I highly recommend exposing yourself to high spiritual-energy sources; i.e., happy/helpful people, friends that make you feel good (rather than make you feel bad, but you believe you still need their companionship), inspirational music/movies/quotes/books, perhaps joining a church or other spiritual/religious group, going out into nature and admiring the beauty in all things. If you need them, take anti-depressants too, they can help.
Though if there is one thing I'd suggest you do, it is to understand as much as you can the levels of consciousness and the various techniques to raise them. The main thing is to keep holding the intention that you want to change, that you want life to get better, and pray to God that He show you the way. The fact that you're even here on this forum means that you're actually doing quite well and being responsible for yourself, and your destiny is to eventually overcome these obstacles. Otherwise, you wouldn't even be here. Two books I recommend are:
1) Ask and it is Given, by Esther and Jerry Hicks
2) Power vs. Force, by David R. Hawkins
I'd actually stick mostly with 1 and do their exercises (or "games" as they call it

), they're very useful. 2) is for a greater understanding of consciousness levels, as well as exposing yourself to very high spiritual energies that may help you rise in consciousness just by reading it and understanding it. What's very useful is to identify what level you are at (in various areas of your life), and try to get yourself to the next level up. For example, in social/relationships it might be the level of fear; the next level up would be desire, and so you set your intentions on learning how to talk and socialize with people in order to get what you want (dates, friends, etc.). In due time, your desire will overpower your fears (or the pain is too much to bear), and you'll naturally be guided to push yourself out of it and into a higher level of consciousness. The exercises in "Ask and it is Given" are very helpful for doing just that.
Once your consciousness level raises, your experiences will naturally change, and you'll attract friends, girls, success, happiness, etc. into your life as a direct consequence of who you've become. Pushing yourself over the edge to Courage, and you're set to go; self-improvement then becomes self-sustaining.
Hope this helps, I've been through it before and I can feel your pain (and I also have some experience with the way out of it). There is hope at the end of the tunnel, so keep at it
