helppppp !!!

Hi ladies , I have a very beautiful 11 month old daughter and planning on going screen free with her ... it had been very good uptil now until I got pregnant with my second and lost my sanity totally , I have so many mood swings and sometimes when she is bugging me alot I just feel like beating her till I find some peace for myself , god forbid , I feel like im turning into a physco ... at night when she finally sleeps I feel so bad , a failed mother , I hate myself for being so harsh to her .. ahh sorry for the rant actually I am looking for some activities for her so that I can find some seconds of peace in my life , something that will engage her for sometime n she will not cry n look for me when im not around , she is least interested in toys , nothing is working for me :( I feel so lost n done with everything