Hello, congratulations on your little girl
Firstly - have you seen this thread? It's one of the stickies at the top of this forum, and I think it'll help you
https://babywhispererforums.com/index.php?topic=39164.0. If you have time, have a look at the other stickies, too, they're full of great advice and answers.
Also, to teach sleep to a baby as young as yours, are you using the 4 S's? This is what Tracy recommended when you are starting out teaching a lo to nap. I don't have a copy of the book to hand, so I can't remember if it's in there, but it is in Baby Whisperer Solves all your Problems (p.182). If you haven't got a copy:
4 S's:
Setting the stage - getting the environment ready for sleep (ie quiet/dark/non stimulating/low-key)
Swaddling - baby should be swaddled gently but firmly before going into the cot (very important - can help with short naps, as it can catch the 'jolt', and help keep arms and legs from flailing about and waking them up)
Sitting - quietly without stimulation (a good wind-down)
ShushPat method - spending an extra few minutes of physical intervention to help a fussy baby drop off into a deep sleep
Also, as PP said, can you post her routine, so we can see how her days are?
HTH