I need help withdrawing myself from a series of negative emotions / thoughts.?!

I need help withdrawing myself from a series of negative emotions / thoughts.?

I've always been sort of a pessimist. I can't help it. I just keep thinking about the worse thing that can happen to me in a particular situation. Recently, I've been very involved in the thoughts of possibly being mentally ill (permanently) one day. I just feel like I might go to a mental hospital one day and would not be able to come out from it ever again. These negative thoughts link to each other and I find it VERY HARD to withdraw from it. I'm like sucked into a world of thoughts that keeps pulling me away from thinking reasonably. Are there useful methods of how i can withdraw from negative thoughts quickly and successfully? I REALLY need your help. ):

first off you need a great ..big....hugeeeeeeee...HUGGGGG...
now sweetie i think we all feel like that on time or another in our lives..and well in order to quit with the negative thoughts we have to put in the POSITIVE thoughts ..
learn to love yourself and accept yourself as you are!! if you like the way you look then great..... and its like..we put ona cute outfit right?? and we love this outfit..but after we put it on..it just doesnt look good on us... well we arent going to wear it anyway..are we??? well sweetie i dont know about you..but i sure as heck am not!! so we take it off..and try on another outfit we really didnt like but after we got it on we loved it..if felt so good and looked totally awesome..... well this is alot like our emotions
if one emotion and in your case the negative..isnt doing anything for us..except bringing us down more..then we ned to change that...ok??
i hope you are following this... dear... now its time when ya ge tup in the morning smile!! tell God how happy you are to be awakened another day..how beautiful it is even if its rainnin or snowing..ok???
ya gotta tell yourself..you love yourself and ready for whatever the days challenges are..that you cna do it..
dont have time to think about what ifs dear
you have your whole life to grow in..and you do this 1 day at atime... new challenges..lessons in and of life to learn..so many new friends to make and so many loves to go through as well
we learn as we grow and we learn by our mistakes
so sweetie..get ur butt up..stretchhh take 3 deep breaths..hold them for a count of 20 and slowly release out your mouth... obtw?? breath in through the nose
now get some juice dup tuneage on that makes ya happy and wanna dance and get a shower..get dressed and smile.... tell yourself its gonna be fine today
yeahhh!!
and get out there and smile at all ya meet..and say owdees..ask someone hows your day etc... call a friend see if they want to hang out..go shoping etc....
take lifes journey because no matter how hard the challenges gets..it all works out for the best and you will be soooo educated and happy at what ya learn and findout about yourself
hugssss an god bless dear
btw sweetie??? i have major brain farts all the time..so i dont think your MENTAL at all
i think your growing..changing and learning is all