Treading into the unknown

So i am completely at a cross road here with my job. It has been hanging on by the hinges for a few months now but its clear what i need to do. I am trying to cut myself free of starbucks only because the manager that i have now has completely made me lose my desire to continue on with the company. This week she only gave me 28 hrs! I was shocked when i looked at the schedule i did not expect that much of a drastic drop. For almost two years i have opened that store monday through friday and have not been late once! I have done so much for that store and that manager i feel like my work has completely been ignored because of her personal opinion of me which is so unprofessional. I tried to go through the proper channels to find out what is really going on and if the things that were claimed that she said held any truth but it seems all corporate and upper management did was brush me aside. My district manager did nothing but make feel as if i was reading too much into the situation and some how creating this all on my own that my manager had no ill intentions. Then another bomb drops i looked at my schedule for the following week and low and behold she only gave me 27 hrs when i specifically asked her if she could get me as close to 40 hrs as possible and what does she do dock my hours by 1hr. I was enraged when i look at the schedule i tried to talk to her about it but she gave me nothing and told me the "schedule is not written in blood, i told you we'd talk about it friday" I told her we wouldn't even be having this conversation if she had just given me more than 27 hrs! If this isn't personal then i have no clue what is!

With all of that being said i have applied at a couple of different places and i hope that i get some responses fast because i have no clue how much longer i can hold on at this place. I am trying to hard to not lose my temper and just exploded i pray that i can just wade through the high waters and that when the storm calms i will prevail. i just have no clue what could drive some one to be so crazy and mean to another because they feel threatened and this is a 40 yr old woman i am talking about.

My job is a main concern but so are so many other things! aargh how did i get to this point?