Went from outgoin full of life person to fearin everything socialising drinkin anything in d matter of a year?

im 21 been in relationships since i can remember. havent been in one since i got pregnant last january 2006 (had baby girl in sept) her dad left me within wks even tho he was d one who wanted baby in the first place. parents took awhile to accept it sufferd from TERRIBLE depression wen i had her feelin low no point in livin etc took me up untill last month to get tru that.. fingers crossed ill keep sane:) but one thing that is stuck is fear. fear of trying new things goin on holidays goin out, gettin in taxis. not been able to go out wit out a rosary beed. honestly a FEAR of ANYTHING now im not sayin i wont do these things.. cause i will but just cant enjoy them or be happy till im at home. alot of people say its cause my "mother wrapped me up in cotten wool and i repsect her too much that she made me afraid" but i used to be so out goin up for a lagh and joke wit my friends goin on trips etc now i cant even have a gl of water with out washin the gl twice.. what is wrong wit me