Anyone had troubles while on Effexor ?

Hello, 

   In early January of 2013  I started Effexor @ 75mg.,  Dr.  moved me up to 150 mg.  , then later upto 300mg. 2 capsules which are gel like peach/orange colored filled with beads.

I was feeling really strange on it & thought maybe it was me because I was so depressed, anxious & unmotivated, unfocused for some time.   I decided to take 1 capsule down to 150mg for about 10 days,  then I had only 1- 75mg capsule left in my bottle from a previous fill.  That was my last capsule - 

For the past 2 days, no Effexor   headaches & dizziness continues.    been crying alot... feeling irritable & constantly feeling so bad for myself, whatever I do doesn't seem good enough,  my focus & concentration hasnt changed  still bad , same bad feeling as when I was taking effexor.   The only positive thing that has changed is that I can get up from bed very early & make breakfast for my middle school getting her started for her walk to her bus & instead of sleeping through it

DOes all this go away soon?   After doing some reading on Effexor I recently find out how bad & addictive effexor is,   if it's anti-depressant, how come it works  so uneffectively ?  

I have one good advice to all,  please read alot & research on any prescription drug your Dr.  suggests before commiting to it!  I felt so depressed, anxious & desperate  that I was just taking anything the Dr, suggested or even I was suggesting since I was having such a hard time finding the right one  & still haven found the right one for me !    How frustrating !!!

Maybe some people arent meant for drugs,  I am beginning to think that my body is not compatible to any type of drug,  does anyone out there feel this same way I feel? 

Like to hear some feedback,  I appreciate!

 Goodnight,

Peace