I am overwhelmed by small things. It can be some errand that I need to run or a task at work. I start something and then I feel like lifting a huge mountain, just feel so overwhelmed, my mind is stressed, I have all negative thoughts and it becomes nearly impossible for me to continue it. How am I supposed to work through this  ? I have a good job and I feel so stressed about everything somehow and due to that cant focus on actual work.

And it also doesn't help I have no clue what I want in life. I only feel at home with my family and don't really feel very connected with others. What can I do to help myself  ?

Am I just lazy, don't want to work for anything at all  ? If that is the case then I am just an unproductive person and a burden for people around me. I cannot control my mind and am sad for no reason. And I keep putting myself through this misery. Isn't it better to just die cause I also don't deserve to suffer ?