Mental prblom. So many questions with!

I have submitted so many questions with regarding to my problem.They concerned me as meet phycologist and phychartrist.i don't know what difference they may both of them.im thinking about only thing about 24 hours with in sleeping also.What Im thinking it is exactly to regular habitual problem.its hurting me sooo much.even some time I feel I want to die.at same time I lossing hope there is no treatment to my prblm.and I think no one facing this type of prblm.Also think it may solve temperary time after that imay face that prblm like that.y because it is related to my habititaul actions on daily life.some times I managing that prblm. In to my mind diverting but after that also feel I have that prblm it's hurting soo much.plz concern me whether I meet phycologist or phychartrist which one is better