I've been taking half a Lexapro 5mg for two days for depression and anxiety... I'm supposed to take a full tablet in two weeks and I know I won't be seeing an improvement that fast but I was just wondering–

Does lexapro help with feelings of deep regret? I've felt so shameful and regretful for the past few days and for good reason. I feel like I don't deserve to feel happy ever again for what I've done but I don't know if I want to die yet. It hurts to breathe and I feel like my heart is shattering every time I try to smile. This doesn't feel like normal depression. I've been depressed in the past but this feel so different. I feel like this is the end for me, that I deserve to feel like this for the rest of my life. Has anyone else felt like this and overcame it?