by myself

by (one)self

1. Alone. Because there's usually so much going on with the kids, I really enjoy spending a quiet Saturday night by myself.
2. Through one's own efforts alone. You can't move that table all by yourself! Here, let me help you. My little girl loves to get dressed by herself, so tutus and cowboy boots have become the norm around here.

by myself

 
1. with no one else present; alone. I sat at the table by myself. I will not be at the party. I will be at home by myself tonight.
2. without the help of anyone else. I did it all by myself. Can you eat that whole pie by yourself?
See also: myself
References in classic literature ?
I can find my way in to Tom Swift perfectly well by myself, and while I appreciate your courtesy I do not want to trouble you.
I moved to the United States by myself three years ago when I was 15 to attend the Interlochen Arts Academy.
I was all by myself though so all my friends assume I'm lying about that.
ONE TIME I WAS SKATING this ditch by myself and my skateboard hit me really hard in the testicles and I fell down and rolled to the bottom of the ditch.
I have a stepbrother and a stepsister, older, but up until fourth or fifth grade I was by myself.
She expresses this view with some frequency when discussing her way of working, which is to say the way she's always preferred to prepare for performances, doing "a lot of rehearsing by myself.
As the group ate, I sat outside by myself, antsy to hit the trails again.
With his two hit plays, I Can Do Bad All by Myself, and I Know I've Been Changed, Perry has recently helped revive the urban, or gospel, theater industry.
Currently, Perry's in the process of negotiating with various Hollywood executives a TV sitcom based on I Can Do Bad All by Myself.
I was sitting there by myself saying, `I'm not sure what I'm doing here,' '' Fetisov said.
Sworn testimony has already been given by myself as to the truth of this Eucharistic miracle.
Doing visual work is much more fun than sitting down by myself to write.
The basic ingredients of All By Myself are the Dukakis team's memoranda and sideline whispers.
But he was happy that I was no longer staying home by myself, feeling lonely isolated from other kids.
So while my athlete friends spent their afternoons on the field or in the gym, I was out in the woods, sometimes with Dave, sometimes by myself, identifying plants with Peterson's Field Guide.