Hello. I suffer just as you do. These web forums are a huge help. As you already stated, self help books and the internet has a wealth of resources. You are already on the right path by being here to seek answers. You will need to start opening up to others which can be difficult for myself. Understand the power of verbally talking about your issues to someone else, even if that person doesn't have any answers.

If you arent already, start exercising. Start off by walking, and slowly get into jogging. You may also consider learning meditation

Last but not least, you can always rely on a pen and peice of paper. Writing down your problems and thoughts is almost as good as discussing them with others. Don't worry about grammar or spelling as you are not publishing a novel. Just get those thoughts out!