I think my life is awful
Is there a reason you think your life is awful?
Yes, it's because of myself. I expect too much from others, and always get disappointed.
This may simply be because you are setting unrealistic expectations. Try to be more reasonable with your expectations, or simply focus on yourself more and what you can do better.
Am I supposed to take your advice?
You do not need to take all of it. However, it is a good idea to listen to different perspectives and be open to using advice.