The older they get the easier it gets?

I just don't agree maybe for me my baby is tough I just feel depressed with life she constantly cries and for nothing she's full changed and everything I hug her play with her and she naps but she sooks soooooo much for nothing I feel like my ears are cutting everytime she cries I feel exhausted I don't eat I don't shower I don't spend time on myself it's like no matter what I do she's not happy she's 3 months and it's getting harder and harder I can't breath she doesn't give me a chance to and now she only wants to nap half an hour 3 times in a day then screams for a bath then screams till she's in bed I just keep having panic attacks this is seriously too hard for me everyone makes it look so easy it's not and it's not getting easier!!