Girl under 18 getting married

Q: I am 17 years old. My mother has passed away last year and I am living with my mamo and nano. I am totally burdened to them. My sister got married last year. They want me to also get married. I am biologically 19. My age was change in childhood. Can I get my nikaah since I've heard that girls under 18 cannot get married?

Making a bequest for one's daughter in law

Q: My question to you is:

Notes to the question,

• I have two brothers and 1 sister (we in total are 4)

• Gold worth $2000.

• Written and signed on a piece of paper in presence of 2 witness (my wife's mom and I)

• No objections by brothers and sister.

Before my mom passed away, she wrote on a piece of paper that the gold worth $2000 should go to my wife when she dies (My wife's mother and I were the witness). None of my siblings knew about this and got to know after the death of my mother and haven't raised an objection. My mom gave my wife the gold because she made lot khidmat of her. What's the Islamic ruling on this?