Winning a prize from a bank

Q: I have recently opened a bank account and the bank has a scheme for all its customers where one account number will be chosen in a lucky draw... The account holder will receive some price money.

There is no payment required to be a part of this lucky draw.

My question is, if someone wins the prize money... Is it halaal to use this money?

The concept of taqdeer and the purpose of life

Q:

1. What is the concept of taqdeer and Allah knowing and deciding our taqdeer?

If dua can change taqdeer, then does Allah not know of the dua or is dua bad? But we are supposed to ask in dua.

I feel like when I make dua that many times it does get accepted and come through, but most of the time it later backfires and the same thing that I was given causes me more pain and suffering.

2. What is life's focus supposed to be and why should we do it? What is my personality supposed to be like as a Muslim?

Depressed due to acne and other self esteem issues

Q: I am severely depressed due to acne on my face. For so long it won't get cured and due to it I have many phycological problems and mental disorders like ocd, anxiety, immense stress depressions and suicidal thoughts.

When I try to stay positive and forget about it, someone comes and passes negative remarks and reminds me of it again and how bad it looks. I am extremely depressed and can't even face my family. I have extremely low self esteem and and feel caged in my body. Its' on my mind 24/7 and can't do anything because of it. I am also failing in my studies due to it , and am failing in deen and dunya. Please help me.

Sharing pictures of women on social media

Q: On Twitter, there's a social media account where a person anonymously receives and posts stories to his followers of peoples’ samoosa runs. He claims that the stories are anonymous and he has inspired many people. The female fans flock over his stories and get emotional if the story doesn't end well and create fantasies of their own lives when they read a good story. He has posted 128 stories over 3 years. Recently, he posted a picture of a car of someone who saw a girl in a random car and wanted to track her down so he posted that picture for his followers to identify the person. Is it permissible to take pictures of strange women and post them on the internet for such purposes? Is it permissible to continue posting such stories when this is the lengths people will go to?