Advice about anxiety problem?

I need a some really good advice.. I’ve been trough a lot since last year, my mother had cancer and I had to support her a lot and take care of her, while at the same time I had to study for the bar exam… thank god everything worked out just fine.. the thing is that after these extremely stressfull events, I find my self very anxious and depressed, It’s like I cant stop worrying about the future. Things like “will a get marry” ” will I be able to stay married and not fail” “will I be able to raise a family” “what If I fail in my life” ” what if I end up having cancer like my mother” and all kinds of stuff.. Im tapering off my meds (Lexapro) again, because they actually make me feel even more confused about everything.. I just want to find the way to stop worrying about these issues.. and just be happy.. but I CANT stop thinking, I know I sound like im crazy, but I just need advice.. Thanks