Hello, I am new to this forum and also using Arduino so I hope that you all can bear with me and maybe give me a nudge in the right direction. I have a little project that I am working on but something is wrong. I am trying to control a small DC-motor with my arduino but for that I need a bit more voltage than what my Arduino can supply. I instead have a 9v battery and by using a transistor (PN2222A) I can controll the motor with the desired power.
Now here is my problem, when I am controlling the DC-motor with my transistor the motor is less powerfull and easy to stop by just putting a finger on it, but when connected directly to my power supply it is much stronger. As far as I know everything is correctly connected, the transistor should be able to withstand 40v and 800mA and nothing is broken.
I have attached an image of my circuit (please note that it may not be perfect).
My transistor also gets very hot, is that normal?
I hope that this is enough info for someone to get a grip on what I might be doing wrong, any help is appreciated. I also hope that I am posting this in the right location but maybe a mod can move this if it is wrong. Thank you! 
