Supporting A Friend

I am neither a psychologist nor a professional in this matter, but I am a person who is experiencing a mental condition that I don't know yet. I hope that you can tell me what it is if you know what is happenning.

I am constantly overthinking, to the point of not being able to sleep, then my heartbeat would go faster, like when I am nervous. I am scared. I tried to be positive and all, I am trying to make things right, but when I am about to take the step, I am experiencing fear. Is that normal or something is wrong with me?

I know what to do, I just don't have the courage to take the steps and get it done..

i tried cheering myself, and read blogs about "how to put your sh*t together" , "staying positive" and such, but it seems like it is not working for me, I am defeated by fear, these are the things happenning to me.

1. I always feel lazy.
2. I am scared.
3. When the time comes for me to do the things I need to do to make things right, I am starting to get nervous.
4. I cannot sleep.
5. I want to give up.
6. I feel like a burden.

It may sound like I am whining for the things that I couldn't control, believe me I am also telling that to myself. "Don't whine, and get it over with", but it is really hard and when I try to turn to my friends, or someone close to me I feel rejected and prevents me from telling them my feelings that is eating me because:

1. Before I tell them things, I can already see and feel dissappointments written all over.
2. Telling me to just do it, and that it will be over soon.
3. The usual line of "If they/I can do it, you can do it"
4. "You are strong, you can do everything" notion or "you are just lazy!" (maybe this is true)
5. The tone of their voices, telling me that I am a nuissance and that "YOU ARE NOT THE ONLY ONE WHO HAS PROBLEMS"

I know everyone has their share of going through some hardships and challenges, and I am happy that you got it over with. I wish I could do it too..