First time mom here looking for help

My 2 week old daughter cries Everytime I put her down ….. when I try to lay her in her crib she automatically wakes and demands to be held… I don’t believe she has colic because the cries aren’t hours long , but everything could be fine and she still cries … I do believe she has problems with gas . She doesn’t fart a lot and her poop has changed consistency from the green seed like poop to very watery green poop & she looks like she’s in so much pain when she’s trying to poop but most people say it’s normal… what can I do ? I feel like a terrible mom also because whenever she does sleep she sleeps all day (she wakes up to eat of course) but she’ll sleep all day . She doesn’t do anything but eat, cry, sleep , poop & pee . She doesn’t smile much at me either . I don’t know what to do I don’t have any help & im just 17