Lisagranycrowe

I am new to using a DAW. I am a musician not an engineer or producer but I need to learn. Can anyone tell me how to overdub a real instrument or vocal in Logic? I can add tracks but I can not listen to the tracks I've recorded while playing a new track. I know this is Logic Pro X 101 but if someone could help me I would be quite grateful...I'll write a song for you. Thanks...I am stuck until I find the key to this function. I know it can be done I just don't know how to do it. Lisagranycrowe aka Lisa Walker