Consulting with one's elders regarding one's career

Q: I suffer from doubts and may have OCD so it makes it very hard for me to make decisions and know what thoughts to listen to. I have always wanted to be doctor and my parents have wanted that too. I was a little unsure lately and I heard that you can make istikhara and it will guide you. I am only in grade 11 right now and I don't have to apply for universities till next year. 1) Should I do it now and then see how it all works out? 2) I have heard that if you go ahead with the action you are seeking guidance for and there isn't any obstacles than it was meant to be but if there is then you should know it wasn't meant to be, I suffer from doubts all the time so making this distinction would be very hard for me. 3) Does that mean like if I failed a test or do bad in a class I shouldn't try to be a doctor anymore. 4) or I don't get into a program at one university but get into another since I didn't get into the first one I shouldn't do it? 5) I have always thought I would be a doctor, so if something like this happens and I still have a feeling like being one, what do I do because I have lots of troubles making decisions because of I am doubtful 6) Is there any way to stop these doubts?

Haraam relationship

Q: I am having a lot of difficulties with my boyfriends father. He does not approve us being together and he keeps on threatening to tell my family and shame me in our community by saying bad things about me. He is threatening my boyfriend that if he does not leave me he will make our lives very difficult. I think he does a wazeefa as he had dreams about our relationship. We have kept our relationship a secret and only a few of my friends know who have no contact with his father or our community. Can you please help me and tell me if there is anything I can do to make him stop and for him to leave us alone.

Seeing to the needs of the home

Q: My question is my husband gives me money every month only after I have given him all the receipts and given him a full monthly expenses list of everything I bought for the month. Which I say is wrong because you are only giving money to feed your four children and us. Even if he buys something or gets something for 50p he will ask me to give it back to him what he gave me. Alhamdullilah he is a heating engineer and earns good money. Some months he wont give money till I give him a full monthly rundown. Please tell me in Islam is what he is doing right?

Doubts regarding urine drops

Q: Whilst I was urinating, I felt as though a drop may have touched my leg as I thought I felt it. The question I have is that I am unsure if there was urine on my trousers and I assumed they were clean and prayed my Salaah. Was my Salaah valid, and also, if a scenario like this occurred in future where I am unsure, should I assume that my clothes are clean or my clothes are dirty?