This Awful Feeling

Tomorrow is Monday, and I'm dreading it.

That awful feeling of being scared, worried, tired, paranoid and pressured. Thinking about those things that I wasn't able to finish last Friday, anticipating a call I have to make and scared of all the problems that may arise. Fearing that I will again be in the office, with tons of things to do and no idea how to do it. No idea on how to even ask for help when everybody is busy with their own things.

Afraid of the thought of being helpless and clueless. Like being in the middle of the ocean with just a styro board to keep me barely afloat.

For someone who's only just entering into third week of work, is this normal?

Feeling scared is normal, being pressured is to.. but dreading it already?

I do not want to quit by tendering my resignation letter because I will let down my friend, who referred me to my current boss.. If I quit, I will let down my family, my boyfriend and myself.
But it did cross my mind to quit.. by just putting a permanent end to everything.