Don't worry, you are most likely normal for a fourteen year old. You are at an important stage in your life where you are trying to define who you are and what you want from life and people. It can be quite a lonely time while you figure all this out, along with all the new feelings and awareness that you didn't have before this period. Be aware that your friends, that are around your age, will be going through the same issues too... you are not alone. Just take your time and work though your thoughts. This time of uncertainty will ease as you pass through this process of maturation. Hang on in there. If you do really feel stuck and can't handle it, seek your doctor out.