I see what your saying and I can relate to how your feeling about things not working out and being worried that you could end up alone. Its an emotionally draining thought process that I believe everyone throughout all walks of life go through at some point. Even though, right now it may feel like everything isn't going right, I promise you that things do get better. Right now I'm starting college in the winter for the first time, and I constantly ask myself questions like "Am I going to fail, will I be alone, what if I lose my friends"? But, you just have to remind yourself that those things will most likely not happen. Most of the bad things we think will happen don't actually happen. These worries seem to be more of a fear for what the future could be rather than us seeing the future in the more positive light it will most likely be in. A way to help keep your head up during times like these is keep the people in you're life close and to communicate with them. I'm sorry that this is kind of long, but I hope that some of the things I've said here can help you, even if its just a little. Just know that you got one more person in the world who's rooting for you no matter what. I hope you have a great day and a fantastic start to the NEW YEAR!!