Depression & Anxiety. ? plz suggest me.

Hello.. I am suffering from depression and anxiety due to over study in past days.. It effected me badly now i am realising it was depression.. I consulted cardiologist after chest pain startd in my heart.. 4yrs back n they recommended to take pexep cr 25mg m betacap but it could nt work much.. I took it for 3yrs but felt small improvement.. Now then i consulted mental doctr and from last 6months i have been taking on cipralex 10mg and zolente forte daily but after taking cipralex i feel more depressed and anxious.. Mu heart goes on pounding more suffrng from blurrd vsion  sometimes i have headache when i skippd it by chance... One thing i feel better than the befre.. But what should i do now.. Shold i continue it..?? Plz suggest me...